NCLE PRACTICE TEST WITH QUESTIONS AND ANSWERS
Hydrogennperoxidencarensystems:
A.nShouldnnotnbenusedntondisinfectnFDAngroupnIVnlenses.
B.nIsnmoreneffectivenagainstnvirusesnandnfunginthannmostnchemicalndisinfectionnsystems
.
C.nDoesnnotnrequirenanredntipnonnitsncontainer,nsincenitndoesnnotncausenpermanentndama
genifnaccidental.
D.nTakesnanminimumnofn2nhoursntonbendecomposednintonwaternandnoxygen.n-
ncorrectnanswer-
B.nIsnmoreneffectivenagainstnvirusesnandnfunginthannmostnchemicalndisinfectionnsystems
.
Innagainstnthenrulenastigmatism,nthensteepestncornealnmeridian:
A.nIsnatnornnearn45ndegrees
B.nIsnatnornnearn90ndegrees
C.nIsnatnornnearn135ndegreesn
D.nIsnatnornnearn180ndegreesn-ncorrectnanswer-D.nIsnatnornnearn180ndegrees.
ThenfollowingnRXnrepresents:
OD:n+2.00nPSH=n20/20
OS:n-3.00-2.00x180n=n20/20
A.nAmblyopia
B.nAnisometropia
C.nAniseikona
D.nEmmetropian-ncorrectnanswer-C.nAnisometropia
Tom'snspectaclesnwithnanpowernofn-
12.00+0.50nxn090,nsitn10nmmninnfrontnofnhisncornea.nThenlikelynsoftnContactnlensnprescrip
tionnfornTomnwouldnbe?
A.n-12.50nD
B.n-12.00nD
C.n-11.75nD
D.n-10.50nDn-ncorrectnanswer-D.n-10.50nD
GivennthenfollowingnrefractionnandnKnreadings,nselectnthencorrectnbasencurvenandnpower
nrecordings-
K'sn44.00n@180n/n41.00n@n90
RX:n-1.00-3.00X090
A.n41.00n/n44.00n|n-1.00n/n-3.00
, B.n41.00n/n44.00n|n-1.00n/n-4.00
C.n41.00n/n44.00n|n-4.00n/n-1.00
D.n44.00n/n41.00n|n-1.00n/n-3.00n-ncorrectnanswer-B.n41.00n/n44.00n|n-1.00n/n-4.00
WhatnisnthenaveragenpHnvaluenofnanhumanntear?n-ncorrectnanswer-7.4
Uponnremovalnofnthencrystallinenlens,nthenpatientnis:n
a.naphakic
b.nmyopic
c.nhyperopic
d.nastigmaticn-ncorrectnanswer-C.nHyperopic
Ifnfluoresceinnevaluationnrevealsnapicalnstaining,nitncouldnbenduento:
A.nAnlensnthatnisntoonsteepnandnloose.
B.nAnlensnthatnisntoonflatnandntight.
C.nCornealnedema
D.nNeovascularizationn-ncorrectnanswer-ABCD
Whichnofnthenfollowingnpreservativesnhasnanlownincidencenofnocularnsensitivitynwithnsoftn
contactnlenses?n
A.nChlorbutanol
B.nBenzalkoniumnChloride
C.nSorbicnAcid
D.nThimerosaln-ncorrectnanswer-C.nSorbicnAcid
Thennormalncorneanisntransparentnduentonthenpumpnactionncreatingnpropernfluidnbalance
.nWhichnlayernofnthencorneanisnmostnresponsiblenfornmaintainingnthisnfunction?
A.nBasalnMembrane
B.nBowmansnMembrane
C.nEndothelium
D.nEpitheliumn-ncorrectnanswer-C.nEndothelium
Whichninstrumentncannprovidensimultaneousninformationnaboutnthencornea,nlids,nconjun
ctiva,nlashes,ncontactnlensnsurfacenandnfit?
A.nRadiuscope
B.nCorneoscope
C.nSlitnLamp
D.nKeratometern-ncorrectnanswer-C.nSlitnLamp
Whichnofnthenfollowingnmaterialncomponentsnhasnthenhighestngasnpermeability?
A.nFluorine
B.nPMMA
C.nButyrate
D.nSiliconen-ncorrectnanswer-D.nSilicone
Whichnofnthenfollowingnchoicesnwouldnworknbestnfornthenpatient'snvisualnneedsngivennthe
nfollowingninformation:nK'sn44.00n@n180n/n45.25n@n90Rxn-3.00n+0.25nxn90
A.nRGPnlens:n45.25n-3.00
B.nRGPnlensnwithntoricnposteriorncurves
C.nSoftntoricnlens
Hydrogennperoxidencarensystems:
A.nShouldnnotnbenusedntondisinfectnFDAngroupnIVnlenses.
B.nIsnmoreneffectivenagainstnvirusesnandnfunginthannmostnchemicalndisinfectionnsystems
.
C.nDoesnnotnrequirenanredntipnonnitsncontainer,nsincenitndoesnnotncausenpermanentndama
genifnaccidental.
D.nTakesnanminimumnofn2nhoursntonbendecomposednintonwaternandnoxygen.n-
ncorrectnanswer-
B.nIsnmoreneffectivenagainstnvirusesnandnfunginthannmostnchemicalndisinfectionnsystems
.
Innagainstnthenrulenastigmatism,nthensteepestncornealnmeridian:
A.nIsnatnornnearn45ndegrees
B.nIsnatnornnearn90ndegrees
C.nIsnatnornnearn135ndegreesn
D.nIsnatnornnearn180ndegreesn-ncorrectnanswer-D.nIsnatnornnearn180ndegrees.
ThenfollowingnRXnrepresents:
OD:n+2.00nPSH=n20/20
OS:n-3.00-2.00x180n=n20/20
A.nAmblyopia
B.nAnisometropia
C.nAniseikona
D.nEmmetropian-ncorrectnanswer-C.nAnisometropia
Tom'snspectaclesnwithnanpowernofn-
12.00+0.50nxn090,nsitn10nmmninnfrontnofnhisncornea.nThenlikelynsoftnContactnlensnprescrip
tionnfornTomnwouldnbe?
A.n-12.50nD
B.n-12.00nD
C.n-11.75nD
D.n-10.50nDn-ncorrectnanswer-D.n-10.50nD
GivennthenfollowingnrefractionnandnKnreadings,nselectnthencorrectnbasencurvenandnpower
nrecordings-
K'sn44.00n@180n/n41.00n@n90
RX:n-1.00-3.00X090
A.n41.00n/n44.00n|n-1.00n/n-3.00
, B.n41.00n/n44.00n|n-1.00n/n-4.00
C.n41.00n/n44.00n|n-4.00n/n-1.00
D.n44.00n/n41.00n|n-1.00n/n-3.00n-ncorrectnanswer-B.n41.00n/n44.00n|n-1.00n/n-4.00
WhatnisnthenaveragenpHnvaluenofnanhumanntear?n-ncorrectnanswer-7.4
Uponnremovalnofnthencrystallinenlens,nthenpatientnis:n
a.naphakic
b.nmyopic
c.nhyperopic
d.nastigmaticn-ncorrectnanswer-C.nHyperopic
Ifnfluoresceinnevaluationnrevealsnapicalnstaining,nitncouldnbenduento:
A.nAnlensnthatnisntoonsteepnandnloose.
B.nAnlensnthatnisntoonflatnandntight.
C.nCornealnedema
D.nNeovascularizationn-ncorrectnanswer-ABCD
Whichnofnthenfollowingnpreservativesnhasnanlownincidencenofnocularnsensitivitynwithnsoftn
contactnlenses?n
A.nChlorbutanol
B.nBenzalkoniumnChloride
C.nSorbicnAcid
D.nThimerosaln-ncorrectnanswer-C.nSorbicnAcid
Thennormalncorneanisntransparentnduentonthenpumpnactionncreatingnpropernfluidnbalance
.nWhichnlayernofnthencorneanisnmostnresponsiblenfornmaintainingnthisnfunction?
A.nBasalnMembrane
B.nBowmansnMembrane
C.nEndothelium
D.nEpitheliumn-ncorrectnanswer-C.nEndothelium
Whichninstrumentncannprovidensimultaneousninformationnaboutnthencornea,nlids,nconjun
ctiva,nlashes,ncontactnlensnsurfacenandnfit?
A.nRadiuscope
B.nCorneoscope
C.nSlitnLamp
D.nKeratometern-ncorrectnanswer-C.nSlitnLamp
Whichnofnthenfollowingnmaterialncomponentsnhasnthenhighestngasnpermeability?
A.nFluorine
B.nPMMA
C.nButyrate
D.nSiliconen-ncorrectnanswer-D.nSilicone
Whichnofnthenfollowingnchoicesnwouldnworknbestnfornthenpatient'snvisualnneedsngivennthe
nfollowingninformation:nK'sn44.00n@n180n/n45.25n@n90Rxn-3.00n+0.25nxn90
A.nRGPnlens:n45.25n-3.00
B.nRGPnlensnwithntoricnposteriorncurves
C.nSoftntoricnlens
