Updated 2026
AssessmentAofAtheAqualityAofAtheAperipheralAcurvesA(blendsAofAaArigidAcontactAlens)AisAachieve
dAbyAtheAuseAofAthe-
a.AprofileAanalyzer
b.AshadowAgraph
c.Akeratometer
d.AburtonAlightA-AAnswerAa.AprofileAanalyzer
ContactAlensApowerAshouldAbeAspecifiedAin-
a.AbackAvertexApower
b.Asphero-cylinderApower
c.ApowerAinAsitu
d.AposterierAapicalAradiusA-AAnswerAa.AbackAvertexApower
TheAslit-lampAilluminationAthatAgivesAanAoverallAviewAofAtheAcorneaAbutAlimitsAdetailAis-
a.AscleroticAscatter
b.Adiffuse
c.AspecularAreflection
d.AoscilatoryA-AAnswerAb.Adiffuse
WhenAaAkeratometricAmiersAreflectedAoffAaAsoftAcontactAlensAareAonlyAclearAwhenAtheAwearerA
blinks,AtheAlensAfitAisAtoo-
a.Asmall
b.Alarge
c.Asteep
d.AflatA-AAnswerAc.Asteep
TransientAkeratometricAmierAdistortionAisAusuallyAdueAto-
a.Apre-ocularAtearAfilmAabnormalities
b.AprolongedArigidAlensAwear
c.AprolongedAsoftAlensAwear
,d.AirregularAcornealAastigmatismA-AAnswerAa.Apre-ocularAtearAfilmAabnormalities
EpithelialAedemaAwhichAmanifestsAitselfAclinicallyAasAcentralAcornealAhaze,AisAverifiedAbyAtheAsl
itAlampAusingAscleroticAscatterAillumination.AWhatAspecificAtechniqueAdoesAtheAexaminerAuseAto
AseeAthisAcondition?
a.AtheAnakedAeyeAandAanAangleAbetweenAtheAslitAlampAbeamAandAtheAeyeAofA90˚
b.AtheAblueAcobaltAfilterAofAtheAslitAlampAandAanAangleAofAaboutA45˚
c.AtheAgreenAfilterAofAtheAslitAlampAwithAhighAmagnification
d.AhighAmagnificationAandAanAangleAbetweenAtheAbeamAandAscopeAofA180˚A-
AAnswerAa.AtheAnakedAeyeAandAanAangleAbetweenAtheAslitAlampAbeamAandAtheAeyeAofA90˚
WithAaArigidAcontactAlensAinAplaceAaAflouresceinApatternAshowsAaAnarrowAbendAhorizontallyAw
ihAaAconcentrationAofAflouresceinAinferiorlyAandAsuperiorlyAunderAtheAlens.AWhichAoneAofAtheAf
ollowingAtypeAofAastigmatismAisArepresentedAbyAthisApattern?
a.AlenticularAastigmatism
b.AresidualAastigmatism
c.AagainstAtheAruleAastigmatism
d.AwithAtheAruleAastigmatismA-AAnswerAd.AwithAtheAruleAastigmatism
RefractiveARxA-3.00A-1.00AxA170
K'sA42.00A@A170/43.00A@A80
GivenAtheAaboveARxAandAK'sAheAfollowingAdiagnosticAtoricAsoftAlensAwasAused:
B.C.A8.8
PowerA-3.00A-1.00AxA180
DuringAdianosticAevalutation,AtheAaboveAlensArotatedA10Aclockwise.ATheAlensAorderedAshouldAha
veAanAaxisAof:
a.A10
b.A180
c.A170
d.A160A-AAnswerAb.A180
GivenAtheAsameAcircumstancesAfromAtheAaboveAquestion,AonceAtheAcorrectlyAorderedAlensAhasAb
eenAdispensed,AtheArotationalAmarksAshouldAsettleAatA_______.
a.A6AoAclock
b.A10AclockwiseArotation
, c.A10AcounterAclockwiseArotation
d.AnoneAofAtheAaboveA-AAnswerAb.A10AclockwiseArotation
AnAinstrumentAthatAallowsAsimultaneousAverificationAofAlensAdiameter,AopticAzoneAwidth,AandAp
eripheralAcurveAwidthAis:
a.AmeasuringAmagnifier
b.Aophthalmometer
c.AprofileAanalyzer
d.AradiuscopeA-AAnswerAa.AmeasuringAmagnifier
(theAbookAsaysAd.Aradiuscope)
TheAinstrumentAusedAforAmagnificationAofAtheAedgeAofAaArigidACLAisAaA_______.
a.Aradiuscope
b.Ashadowgraph
c.AprofileAanalysis
d.AkeratometerA-AAnswerAb.Ashadowgraph
MaryAisAwearingAinAherArightAeyeARGPAlensAwithAaAbaseAcurveAofA43.50AandAaApowerAofA
+2.75.ATheAdoctorArefractsA-
0.75AsphereAoverAthisAlens.AIfAyouAwishAtoAorderAherAaAnewAlensAwithAaAcurveAofA43.00,Aw
hatAwillAtheAnewApowerAbe?
a.A+1.50
b.A+2.00
c.A+2.50
d.A+3.00A-AAnswerAc.A+250
WhichAofAtheAfollowingAcouldAbeAconsideredAinAtheAfittingAofAaAkeratoconusApatient
1.Aaspheric
2.AMcGuire
3.ASoper
4.AtangentAstreak
a.A1A&A2
b.A2A&A3