<?xml version="1.0" encoding="US-ASCII"?>
<!-- DFIN New ActiveDisclosure (SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date :2021-09-09T16:46:29.0648+00:00 -->
<!-- Copyright (c) 2021 Donnelly Financial Solutions, Inc. All Rights Reserved. -->
<xsd:schema targetNamespace="http://rxsight.com/20210630" attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:country="http://xbrl.sec.gov/country/2020-01-31" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:dei="http://xbrl.sec.gov/dei/2020-01-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:enum2="http://xbrl.org/2020/extensible-enumerations-2.0" xmlns:rxst="http://rxsight.com/20210630" xmlns:srt="http://fasb.org/srt/2020-01-31" xmlns:us-gaap="http://fasb.org/us-gaap/2020-01-31" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:xlink="http://www.w3.org/1999/xlink">
  <xsd:import schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/instance"/>
  <xsd:import schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/linkbase"/>
  <xsd:import schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" namespace="http://xbrl.org/2005/xbrldt"/>
  <xsd:import schemaLocation="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd" namespace="http://fasb.org/us-gaap/2020-01-31"/>
  <xsd:import schemaLocation="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd" namespace="http://xbrl.sec.gov/dei/2020-01-31"/>
  <xsd:import schemaLocation="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd" namespace="http://fasb.org/srt/2020-01-31"/>
  <xsd:import schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" namespace="http://www.xbrl.org/dtr/type/numeric"/>
  <xsd:import schemaLocation="https://xbrl.sec.gov/country/2020/country-2020-01-31.xsd" namespace="http://xbrl.sec.gov/country/2020-01-31"/>
  <xsd:import schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" namespace="http://www.xbrl.org/dtr/type/non-numeric"/>
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="rxst-20210630_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:title="Labels link" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="rxst-20210630_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:title="Presentation link" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="rxst-20210630_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:title="Definition link" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="rxst-20210630_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:title="Calculation link" xlink:type="simple"/>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DocumentDocumentAndEntityInformation" id="Role_DocumentDocumentAndEntityInformation">
        <link:definition>100000 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsUnaudited" id="Role_StatementCondensedConsolidatedBalanceSheetsUnaudited">
        <link:definition>100010 - Statement - Condensed Consolidated Balance Sheets (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfLeaseLiabilitesDetails2" id="DisclosureLeasesScheduleOfMaturitiesOfLeaseLiabilitesDetails2">
        <link:definition>100020 - Disclosure - Leases - Schedule of Maturities of Lease Liabilites (Details) 2</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsUnauditedParenthetical" id="Role_StatementCondensedConsolidatedBalanceSheetsUnauditedParenthetical">
        <link:definition>100030 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLossUnaudited" id="StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLossUnaudited">
        <link:definition>100040 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfRedeemableCommonStockStockOptionsConvertiblePreferredStockAndStockholdersDeficitUnaudited" id="Role_StatementCondensedConsolidatedStatementsOfRedeemableCommonStockStockOptionsConvertiblePreferredStockAndStockholdersDeficitUnaudited">
        <link:definition>100050 - Statement - Condensed Consolidated Statements of Redeemable Common Stock, Stock Options, Convertible Preferred Stock and Stockholders' Deficit (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/StatementCondensedConsolidatedStatementsOfRedeemableCommonStockStockOptionsConvertiblePreferredStockAndStockholdersDeficitUnauditedParenthetic" id="StatementCondensedConsolidatedStatementsOfRedeemableCommonStockStockOptionsConvertiblePreferredStockAndStockholdersDeficitUnauditedParenthetic">
        <link:definition>100060 - Statement - Condensed Consolidated Statements of Redeemable Common Stock, Stock Options, Convertible Preferred Stock and Stockholders' Deficit (Unaudited) (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlows1" id="StatementCondensedConsolidatedStatementsOfCashFlows1">
        <link:definition>100070 - Statement - Condensed Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsParenthetical" id="StatementCondensedConsolidatedStatementsOfCashFlowsParenthetical">
        <link:definition>100080 - Statement - Condensed Consolidated Statements of Cash Flows (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureOrganizationAndBasisOfPresentation" id="Role_DisclosureOrganizationAndBasisOfPresentation">
        <link:definition>100090 - Disclosure - Organization and Basis of Presentation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureSummaryOfAccountingPolicies" id="Role_DisclosureSummaryOfAccountingPolicies">
        <link:definition>100100 - Disclosure - Summary of Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureShortTermInvestment" id="Role_DisclosureShortTermInvestment">
        <link:definition>100110 - Disclosure - Short-Term Investment</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureInventories" id="Role_DisclosureInventories">
        <link:definition>100120 - Disclosure - Inventories</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureFairValueMeasurements" id="Role_DisclosureFairValueMeasurements">
        <link:definition>100130 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureTermLoan" id="Role_DisclosureTermLoan">
        <link:definition>100140 - Disclosure - Term Loan</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureCommonStockWarrantLiability" id="Role_DisclosureCommonStockWarrantLiability">
        <link:definition>100150 - Disclosure - Common Stock Warrant Liability</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureConvertiblePreferredStockAndStockholdersDeficit" id="Role_DisclosureConvertiblePreferredStockAndStockholdersDeficit">
        <link:definition>100160 - Disclosure - Convertible Preferred Stock and Stockholders&#8217; Deficit</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureStockBasedCompensationExpense" id="Role_DisclosureStockBasedCompensationExpense">
        <link:definition>100170 - Disclosure - Stock-Based Compensation Expense</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureIncomeTaxes" id="Role_DisclosureIncomeTaxes">
        <link:definition>100180 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureLeases" id="Role_DisclosureLeases">
        <link:definition>100190 - Disclosure - Leases</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureCommitmentsAndContingencies" id="Role_DisclosureCommitmentsAndContingencies">
        <link:definition>100200 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureSubsequentEvents" id="Role_DisclosureSubsequentEvents">
        <link:definition>100210 - Disclosure - Subsequent Events</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureSummaryOfAccountingPoliciesPolicies" id="Role_DisclosureSummaryOfAccountingPoliciesPolicies">
        <link:definition>100220 - Disclosure - Summary of Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureSummaryOfAccountingPoliciesTables" id="Role_DisclosureSummaryOfAccountingPoliciesTables">
        <link:definition>100230 - Disclosure - Summary of Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureShortTermInvestmentTables" id="Role_DisclosureShortTermInvestmentTables">
        <link:definition>100240 - Disclosure - Short-Term Investment (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureInventoriesTables" id="Role_DisclosureInventoriesTables">
        <link:definition>100250 - Disclosure - Inventories (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureFairValueMeasurementsTables" id="Role_DisclosureFairValueMeasurementsTables">
        <link:definition>100260 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureTermLoanTables" id="Role_DisclosureTermLoanTables">
        <link:definition>100270 - Disclosure - Term Loan (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureConvertiblePreferredStockAndStockholdersDeficitTables" id="Role_DisclosureConvertiblePreferredStockAndStockholdersDeficitTables">
        <link:definition>100280 - Disclosure - Convertible Preferred Stock and Stockholders&#8217; Deficit (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureStockBasedCompensationExpenseTables" id="Role_DisclosureStockBasedCompensationExpenseTables">
        <link:definition>100290 - Disclosure - Stock-Based Compensation Expense (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureLeasesTables" id="Role_DisclosureLeasesTables">
        <link:definition>100300 - Disclosure - Leases (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureOrganizationAndBasisOfPresentationAdditionalInformationDetails" id="Role_DisclosureOrganizationAndBasisOfPresentationAdditionalInformationDetails">
        <link:definition>100310 - Disclosure - Organization and Basis of Presentation - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureSummaryOfAccountingPoliciesAdditionalInformationDetails" id="Role_DisclosureSummaryOfAccountingPoliciesAdditionalInformationDetails">
        <link:definition>100320 - Disclosure - Summary of Accounting Policies - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureSummaryOfAccountingPoliciesScheduleOfBasicAndDilutedNetIncomeLossPerShareDetails" id="Role_DisclosureSummaryOfAccountingPoliciesScheduleOfBasicAndDilutedNetIncomeLossPerShareDetails">
        <link:definition>100330 - Disclosure - Summary of Accounting Policies - Schedule of Basic and Diluted Net Income (Loss) Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureSummaryOfAccountingPoliciesScheduleOfDilutiveSecuritiesExcludedFromComputationOfIncomeLossPerShareDetails" id="Role_DisclosureSummaryOfAccountingPoliciesScheduleOfDilutiveSecuritiesExcludedFromComputationOfIncomeLossPerShareDetails">
        <link:definition>100340 - Disclosure - Summary of Accounting Policies - Schedule of Dilutive Securities Excluded from Computation of Income (Loss) Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureSummaryOfAccountingPoliciesScheduleOfRevenueFromContractsWithCustomersDetails" id="Role_DisclosureSummaryOfAccountingPoliciesScheduleOfRevenueFromContractsWithCustomersDetails">
        <link:definition>100350 - Disclosure - Summary of Accounting Policies - Schedule of Revenue From Contracts With Customers (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/DisclosureSummaryOfAccountingPoliciesScheduleOfDeferredRevenueActivityDetails" id="DisclosureSummaryOfAccountingPoliciesScheduleOfDeferredRevenueActivityDetails">
        <link:definition>100360 - Disclosure - Summary of Accounting Policies - Schedule of Deferred Revenue Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureShortTermInvestmentScheduleOfShortTermInvestmentAvailableForSaleDetails" id="Role_DisclosureShortTermInvestmentScheduleOfShortTermInvestmentAvailableForSaleDetails">
        <link:definition>100370 - Disclosure - Short-Term Investment - Schedule of Short-term Investment Available For Sale (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureShortTermInvestmentAdditionalInformationDetails" id="Role_DisclosureShortTermInvestmentAdditionalInformationDetails">
        <link:definition>100380 - Disclosure - Short-Term Investment - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/DisclosureInventoriesScheduleOfInventoriesDetails" id="DisclosureInventoriesScheduleOfInventoriesDetails">
        <link:definition>100390 - Disclosure - Inventories - Schedule of Inventories (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/DisclosureInventoriesAdditionalInformationDetails" id="DisclosureInventoriesAdditionalInformationDetails">
        <link:definition>100400 - Disclosure - Inventories - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureFairValueMeasurementsScheduleOfAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisAndFairValueHierarchyOfValuationTechniquesDetails" id="Role_DisclosureFairValueMeasurementsScheduleOfAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisAndFairValueHierarchyOfValuationTechniquesDetails">
        <link:definition>100410 - Disclosure - Fair Value Measurements - Schedule of assets and liabilities measured at fair value on recurring basis and the fair value hierarchy of the valuation techniques (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureFairValueMeasurementsScheduleOfEstimatedFairValueForWarrantLiabilitiesMeasuredUsingSignificantUnobservableInputsDetails" id="Role_DisclosureFairValueMeasurementsScheduleOfEstimatedFairValueForWarrantLiabilitiesMeasuredUsingSignificantUnobservableInputsDetails">
        <link:definition>100420 - Disclosure - Fair Value Measurements -Schedule of estimated fair value for the warrant liabilities measured using significant unobservable inputs (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureTermLoanAdditionalInformationDetails" id="Role_DisclosureTermLoanAdditionalInformationDetails">
        <link:definition>100430 - Disclosure - Term Loan - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureTermLoanFuturePrincipalPaymentsDueUnderTermLoanDetails" id="Role_DisclosureTermLoanFuturePrincipalPaymentsDueUnderTermLoanDetails">
        <link:definition>100440 - Disclosure - Term Loan - Future Principal Payments Due Under the Term Loan (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureCommonStockWarrantLiabilityAdditionalInformationDetails" id="Role_DisclosureCommonStockWarrantLiabilityAdditionalInformationDetails">
        <link:definition>100450 - Disclosure - Common Stock Warrant Liability - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/DisclosureConvertiblePreferredStockAndStockholdersDeficitSummaryOfPreferredStockDetails" id="DisclosureConvertiblePreferredStockAndStockholdersDeficitSummaryOfPreferredStockDetails">
        <link:definition>100460 - Disclosure - Convertible Preferred Stock and Stockholders' Deficit - Summary of Preferred Stock (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/DisclosureConvertiblePreferredStockAndStockholdersDeficitAdditionalInformationDetails" id="DisclosureConvertiblePreferredStockAndStockholdersDeficitAdditionalInformationDetails">
        <link:definition>100470 - Disclosure - Convertible Preferred Stock and Stockholders' Deficit - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/DisclosureConvertiblePreferredStockAndStockholdersDeficitSummaryOfCommonStockReservedForFutureIssuanceDetails" id="DisclosureConvertiblePreferredStockAndStockholdersDeficitSummaryOfCommonStockReservedForFutureIssuanceDetails">
        <link:definition>100480 - Disclosure - Convertible Preferred Stock and Stockholders' Deficit - Summary of Common Stock Reserved for Future Issuance (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureStockBasedCompensationExpenseAdditionalInformationDetails" id="Role_DisclosureStockBasedCompensationExpenseAdditionalInformationDetails">
        <link:definition>100490 - Disclosure - Stock-Based Compensation Expense - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureStockBasedCompensationExpenseSummaryOfStockOptionActivitiesDetails" id="Role_DisclosureStockBasedCompensationExpenseSummaryOfStockOptionActivitiesDetails">
        <link:definition>100500 - Disclosure - Stock-Based Compensation Expense - Summary of Stock Option Activities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureStockBasedCompensationExpenseScheduleOfStockBasedCompensationExpenseDetails" id="Role_DisclosureStockBasedCompensationExpenseScheduleOfStockBasedCompensationExpenseDetails">
        <link:definition>100510 - Disclosure - Stock-Based Compensation Expense - Schedule of Stock-Based Compensation Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureStockBasedCompensationExpenseScheduleOfRangeAndWeightedAverageAssumptionsUsedInBlackScholesOptionPricingModelToDetermineFairValueOfStockOptionsDetails" id="Role_DisclosureStockBasedCompensationExpenseScheduleOfRangeAndWeightedAverageAssumptionsUsedInBlackScholesOptionPricingModelToDetermineFairValueOfStockOptionsDetails">
        <link:definition>100520 - Disclosure - Stock-Based Compensation Expense - Schedule of Range and Weighted-average Assumptions Used in Black-Scholes Option Pricing Model to Determine the Fair Value of Stock Options (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" id="DisclosureLeasesAdditionalInformationDetails">
        <link:definition>100530 - Disclosure - Leases - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/DisclosureLeasesSummaryOfLeaseBalancesSheetInformationDetails" id="DisclosureLeasesSummaryOfLeaseBalancesSheetInformationDetails">
        <link:definition>100540 - Disclosure - Leases - Summary of Lease Balances Sheet Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/DisclosureLeasesScheduleOfComponentsOfLeaseExpenseDetails" id="DisclosureLeasesScheduleOfComponentsOfLeaseExpenseDetails">
        <link:definition>100550 - Disclosure - Leases - Schedule of Components of Lease Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfLeaseLiabilitesDetails" id="DisclosureLeasesScheduleOfMaturitiesOfLeaseLiabilitesDetails">
        <link:definition>100560 - Disclosure - Leases - Schedule of Maturities of Lease Liabilites (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/DisclosureLeasesSummaryOfWeightedAverageRemainingLeaseTermAndDiscountRateDetails" id="DisclosureLeasesSummaryOfWeightedAverageRemainingLeaseTermAndDiscountRateDetails">
        <link:definition>100570 - Disclosure - Leases - Summary of Weighted Average Remaining Lease Term and Discount Rate (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetails" id="Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetails">
        <link:definition>100580 - Disclosure - Commitments and Contingencies - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://rxsight.com/20210630/taxonomy/role/Role_DisclosureSubsequentEventsAdditionalInformationDetails" id="Role_DisclosureSubsequentEventsAdditionalInformationDetails">
        <link:definition>100590 - Disclosure - Subsequent Events - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element id="rxst_ConvertiblePreferredStockAbstract" name="ConvertiblePreferredStockAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_LeaseObligationsRecordedForRightOfUseAssetsAbstract" name="LeaseObligationsRecordedForRightOfUseAssetsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_RightOfUseAssetsObtainedInExchangeForLeaseObligationsAbstract" name="RightOfUseAssetsObtainedInExchangeForLeaseObligationsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_WeightedAverageDiscountRateAbstract" name="WeightedAverageDiscountRateAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_WeightedAverageRemainingLeaseTermAbstract" name="WeightedAverageRemainingLeaseTermAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_AccountsReceivablePercentage" name="AccountsReceivablePercentage" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_AccretionToRedemptionValueOfRedeemablePreferredStockAndRedeemableStockOptions" name="AccretionToRedemptionValueOfRedeemablePreferredStockAndRedeemableStockOptions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_AccretionToRedemptionValueOfRedeemableStock" name="AccretionToRedemptionValueOfRedeemableStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_AccretionToRedemptionValueOfRedeemableStockOptions" name="AccretionToRedemptionValueOfRedeemableStockOptions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_AdditionalBorrowingAmount" name="AdditionalBorrowingAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_AdditionalNonRefundablePaymentUponExtensionOfExpiration" name="AdditionalNonRefundablePaymentUponExtensionOfExpiration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_AdditionalNumberOfCommonSharesIssued" name="AdditionalNumberOfCommonSharesIssued" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_ChangeInNotesReceivableForRedeemableCommonStockIssued" name="ChangeInNotesReceivableForRedeemableCommonStockIssued" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_ChangeInNotesReceivableForRedeemableCommonStockIssuedFinancingActivities" name="ChangeInNotesReceivableForRedeemableCommonStockIssuedFinancingActivities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rxst_CommonStockAfterReclassificationOfRedeemableCommonStockShares" name="CommonStockAfterReclassificationOfRedeemableCommonStockShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_CommonStockOutstandingPercentage" name="CommonStockOutstandingPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rxst_DeferredOfferingCostsIncludedInAccruedExpenses" name="DeferredOfferingCostsIncludedInAccruedExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_EarningsPerShareSeriesGCommonStockBasicAndDiluted" name="EarningsPerShareSeriesGCommonStockBasicAndDiluted" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_EffectiveInterestRateOnBorrowingsTermLoan" name="EffectiveInterestRateOnBorrowingsTermLoan" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_EscrowHoldbackOfExercisePriceOfWarrants" name="EscrowHoldbackOfExercisePriceOfWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_ExerciseOfPreferredStockWarrants" name="ExerciseOfPreferredStockWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rxst_ExercisePriceOfWarrants" name="ExercisePriceOfWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_ExpirationOfCommonStockWarrants" name="ExpirationOfCommonStockWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rxst_ExpirationOfWarrant" name="ExpirationOfWarrant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rxst_GainLossFromChangesInFairValueOfCommonStockWarrant" name="GainLossFromChangesInFairValueOfCommonStockWarrant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_GainLossFromChangesInFairValueOfPreferredStockWarrants" name="GainLossFromChangesInFairValueOfPreferredStockWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_GainLossOnExpirationOfWarrant" name="GainLossOnExpirationOfWarrant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_GainOnExpirationOfWarrants" name="GainOnExpirationOfWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_InterestPaidOnFinancingLeases" name="InterestPaidOnFinancingLeases" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_InterestPaidOnTermLoan" name="InterestPaidOnTermLoan" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_InterestRateOnBorrowingsTermLoan" name="InterestRateOnBorrowingsTermLoan" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_InvestmentMaturityPeriod" name="InvestmentMaturityPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_LeaseLiabilitiesCurrent" name="LeaseLiabilitiesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_LeaseLiabilitiesNoncurrent" name="LeaseLiabilitiesNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_LongTermWarrantLiability" name="LongTermWarrantLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_NotesReceivableCommonStockIssued" name="NotesReceivableCommonStockIssued" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_NumberOfLeases" name="NumberOfLeases" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rxst_NumberOfWhollyOwnedSubsidiaries" name="NumberOfWhollyOwnedSubsidiaries" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_OperatingLeaseObligationsIncurred" name="OperatingLeaseObligationsIncurred" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_PotentialAggregatePaymentsForRegulatoryMilestones" name="PotentialAggregatePaymentsForRegulatoryMilestones" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_PotentialAggregatePaymentsForSalesBasedAndOperatingMilestones" name="PotentialAggregatePaymentsForSalesBasedAndOperatingMilestones" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_ReclassificationOfRedeemableCommonStockOptionsToCommonStockOptions" name="ReclassificationOfRedeemableCommonStockOptionsToCommonStockOptions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_ReclassificationOfRedeemableCommonStockToCommonStockOptionsAssumedInNonCashInvestingOrFinancingActivity" name="ReclassificationOfRedeemableCommonStockToCommonStockOptionsAssumedInNonCashInvestingOrFinancingActivity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_ReclassificationOfSharesOfRedeemableCommonStockToCommonStockAssumedInNonCashInvestingOrFinancingActivity" name="ReclassificationOfSharesOfRedeemableCommonStockToCommonStockAssumedInNonCashInvestingOrFinancingActivity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_ReclassificationOfSharesOfRedeemableCommonStockToSharesOfCommonStock" name="ReclassificationOfSharesOfRedeemableCommonStockToSharesOfCommonStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_ReclassificationOfSharesOfRedeemableCommonStockToSharesOfCommonStockInShares" name="ReclassificationOfSharesOfRedeemableCommonStockToSharesOfCommonStockInShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_RedeemableCommonStockReclassifiedShares" name="RedeemableCommonStockReclassifiedShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsGrantDateFairValue" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedDividendYield" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedDividendYield" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedLife" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedLife" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageGrantDateFairValue" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageRiskFreeInterestRate" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageRiskFreeInterestRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedWeightedAverageGrantDateFairValue" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAvailableForGrantExercised" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAvailableForGrantExercised" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAvailableForGrantExpired" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAvailableForGrantExpired" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAvailableForGrantForfeited" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAvailableForGrantForfeited" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAvailableForGrantGranted" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAvailableForGrantGranted" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAvailableForGrantIssued" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAvailableForGrantIssued" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_ShareholderRepresentativeHoldbackOfExercisePriceOfWarrants" name="ShareholderRepresentativeHoldbackOfExercisePriceOfWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_TemporaryEquityNoteReceivablesCommonStockIssued" name="TemporaryEquityNoteReceivablesCommonStockIssued" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_TemporaryEquityRedeemableStockOptions" name="TemporaryEquityRedeemableStockOptions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_TotalLeaseAssets" name="TotalLeaseAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rxst_TotalLeaseLiabilities" name="TotalLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_WarrantLiability" name="WarrantLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_WarrantsIssuedToPurchaseCommonStock" name="WarrantsIssuedToPurchaseCommonStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rxst_WeightedAverageNumberOfSharesSeriesGCommonStockBasicAndDiluted" name="WeightedAverageNumberOfSharesSeriesGCommonStockBasicAndDiluted" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_EarningsPerShareLineItems" name="EarningsPerShareLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_CalhounVisionInc2015EquityIncentivePlanAndCalhounVisionInc2006StockPlanMember" name="CalhounVisionInc2015EquityIncentivePlanAndCalhounVisionInc2006StockPlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_CommonStockWarrantLiabilityMember" name="CommonStockWarrantLiabilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_CommonStockWarrantMember" name="CommonStockWarrantMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_ConvertiblePreferredStockWarrantLiabilityMember" name="ConvertiblePreferredStockWarrantLiabilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_EmployeesMember" name="EmployeesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_LALMember" name="LALMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_LDDMember" name="LDDMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_NotesReceivableForCommonStockIssuedMember" name="NotesReceivableForCommonStockIssuedMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_NotesReceivableForRedeemableCommonStockIssuedMember" name="NotesReceivableForRedeemableCommonStockIssuedMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_OfficeManufacturingAndWarehouseFacilityMember" name="OfficeManufacturingAndWarehouseFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_PreferredStockWarrantMember" name="PreferredStockWarrantMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_PreferredStockWarrantsMember" name="PreferredStockWarrantsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_RedeemableCommonStockMember" name="RedeemableCommonStockMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_RedeemableConvertiblePreferredStockWarrantLiabilityMember" name="RedeemableConvertiblePreferredStockWarrantLiabilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_RedeemableStockOptionsMember" name="RedeemableStockOptionsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_SeriesGCommonStockMember" name="SeriesGCommonStockMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_SeriesWCommonStockMember" name="SeriesWCommonStockMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_ServiceWarrantyServiceContractsAndAccessoriesMember" name="ServiceWarrantyServiceContractsAndAccessoriesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_SharePurchaseAgreementMember" name="SharePurchaseAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_TermLoanMember" name="TermLoanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_TwoThousandSixAndTwoThousandFifteenPlansMember" name="TwoThousandSixAndTwoThousandFifteenPlansMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_TwoThousandTwentyOnePlanMember" name="TwoThousandTwentyOnePlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_COVID19PolicyTextBlock" name="COVID19PolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_EmergingGrowthCompanyStatusPolicyTextBlock" name="EmergingGrowthCompanyStatusPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_InitialPublicOfferingAndReverseStockSplitPolicyPolicyTextBlock" name="InitialPublicOfferingAndReverseStockSplitPolicyPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_ShortTermInvestmentsPolicyTextBlock" name="ShortTermInvestmentsPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_SignificantAccountingPoliciesPolicyTextBlock" name="SignificantAccountingPoliciesPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_WarrantsToPurchaseStockPolicyTextBlock" name="WarrantsToPurchaseStockPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_EarningsPerShareTable" name="EarningsPerShareTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rxst_SharesReservedForFutureIssuanceTableTextBlock" name="SharesReservedForFutureIssuanceTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_SummaryOfLeaseBalancesTableTextBlock" name="SummaryOfLeaseBalancesTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_SummaryOfWeightedAverageRemainingLeaseTermAndDiscountRateTableTextBlock" name="SummaryOfWeightedAverageRemainingLeaseTermAndDiscountRateTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_DeferredOfferingCostsPolicyTextBlock" name="DeferredOfferingCostsPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rxst_LiquidityAndFinancialPositionPolicyTextBlock" name="LiquidityAndFinancialPositionPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
</xsd:schema>
