医学课件：接触镜的检测 接触镜与现代生活.ppt

《医学课件：接触镜的检测 接触镜与现代生活.ppt》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、ContactlensandmodernvisionlifeWENZHOUMEDICALCOLLEGE12CLandmodernvisionlifeCLandReadingCLandDryeyeCLandSportCLandUVetc3Chapter1CLandReadingCLandcomputerrelatedvisionproblems4ComputerVisionSyndromeVitalityandvariabilityBlinkingBrightness,ContrastSensitivityReading:fixationandsaccadi

2、cComputer:saccadic,pursue,fixation51、visionproblemNearblurredvisionSlownessinaccommodateBlurinthedistanceafternearworkDiplopia(doublevision)Colorvisionproblem62、EyephysiologyEyeburningDryeyeRednessBlinkinganomaliesContactlensdiscomforteyepainEyestrain:exophoria73、Glare,flareandsensi

3、tivityGlare:眩光Flare:闪光sensitivity:对光敏感84、CLandAccommodationDistance:40cmNormaleyeAge:17yAccommodation=？9Distance:40cmPresbyopiaAge:45yAccAmp=3.00DAccCLandAccommodation10SpectacleandAccommodation-1Ag=________s(1-2dP)P=-6.00D,d=15mm,s=25cmAcc:?Acc=3.38D11CLandAccommodations=25cmAcc=?A

4、cc=4D125、CLandConvergenceMyopia:SpectacleContactlensHyperopiaSpectacleContactlens13Chapter2:Contactlens&dryeyeDryeyeisachronic,multifactorialconditioncharacterizedbydisturbancesinthetearfilmandtheocularsurface.14ReasonDryeyecanbecausedbydeficiencyofanyoneormoreofthetearfilmcomponent

5、s,orcanbeacomponentofsystemicdiseases.15prevalenceMossnotedthatafterage59,prevalencemorethandoubled.AseparateAustralianstudyof926subjectsage40andolderfoundgenerallyhigherprevalenceofdryeyeinwomen16TreatmentofDryeyeBehavioralandenvironmentalmodificationTakebreakswhilereadingLoweringt

6、hecomputermonitortodecreaselidapertureHumidificationoftheenvironmentwarmer17TreatmentofDryeyeNonpreservedtearsubstitutesorgelsMedicationsSurgery18Chapter3CLandsports19BenefitsofCLIncreasedperipheralvisionReducedspatialdistortionMorerealworldvisualinformationImproveddepthperceptionMo

7、vewiththeeyesevenduringactivities20BenefitsofCLoverspectaclesNoreflections,fewerabberrationsDonotslipdownthenose,falloff,foguporbecomecoveredwithsweat,rain,dustsunglassesorprotectiveeyewearcanbewornoverCLPsychologically,lessencumberingthanspectacles21CLandsportvisionVisionfieldPrism

8、Glare221、Visionfiel