最新Low Vision Clinic低视力门诊ppt课件.ppt

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1、LowVisionClinic低视力门诊WhatisLowVision?Patientsmaybeblindorjustpartiallysighted(visuallyimpaired)20/70orworseinbettereyeLegallyBlindis20/200orworsewithbestcorrectiononWhatcanRehabilitativeOptometrydotohelp?HelppatientsseetoreadHelppatientsseetodriveHelppatientsmeetspecifi

2、cvisiongoalsDispensingVisitPatient’sglassesordevicesaregiventopatientandbasictraininginofficeisprovidedOTschedules2-4morehomevisitstomakesurepatientusesdevicecorrectlyandisusingresidualvisioncorrectly(eccentricviewingtrainingifneeded)OTreportsbacktoDr.forfollowupEXAMCO

3、MPONENTSCasehistorySummarizetoobtainbasicgoalsSustainedNear:ReadingcontinuoustextSpottingNear:Seeingbills,shoppingSustainedDistance:WatchingTVSpottingDistance:Driving,seeingsignsIlluminationandGlare:oftenneedenhancedcontrastindoor,needbetterlightingindoorEXAMCOMPONENT

4、SFunctionalvisualacuitiesDistanceVisionFeinbloomchart(DesignsofVision)NearVisionSingledigitchart(Mnotation–Lighthousecharts)Continuoustextchart(Mnotation-Lighthouse)EXAMCOMPONENTSTrialframerefractionEXAMCOMPONENTSFunctionalvisualfieldsSeveraltestsavailabletohelpdete

5、rminehowmuchusablevisionispresentNystagmuspatientsusuallyhavefullfieldsThisisgreatforrehabilitationprocessesEXAMCOMPONENTSContrastsensitivityTestingiscriticalfordeterminingiflowcontrastobjectscanbeseenindimlightingPoorcontrastsensitivitymayslowdownreadingorcauseproble

6、msdrivingatnight…EXAMCOMPONENTSBinocularityFunctionalconsiderationsDepthperceptionupclose(3D)Manynystagmuspatientshavenodepthperception(ortruebinocularity)MostLowVisionpatientsarefunctionallymonocularEXAMCOMPONENTSCalculationstodeterminethebesttypeofmagnificationormo

7、dificationsEXAMCOMPONENTSAFewTreatmentoptionsSpectacleplane–highplus/microscopeLoupe–Handmagnifier,standmagnifier,headmountedTelescopesElectronicdevicesFilters/lightingGlareTreatmentVariouscoloredfilters(lenstints)NoIRCorningPlasticPhotochromic(ChadwickOptical)Cocoon’

8、sElectronicMagnification:CCTVNonopticalaidsRelativeSizeDevices:LargePrintBooksPostureandPositioningDevices:LapboardsW