NCLE PRACTICE TEST EXAM
QUESTIONS WITH DETAILED CORRECT
ANSWERS
Hydrogen cperoxide ccare csystems:
A. cShould cnot cbe cused cto cdisinfect cFDA cgroup cIV clenses.
B. cIs cmore ceffective cagainst cviruses cand cfungi cthan cmost cchemical cdisinfection csystems.
C. cDoes cnot crequire ca cred ctip con cits ccontainer, csince cit cdoes cnot ccause cpermanent
cdamage cif caccidental.
D. cTakes ca cminimum cof c2 chours cto cbe cdecomposed cinto cwater cand coxygen. c- ccorrect
canswers✔✔B. cIs cmore ceffective cagainst cviruses cand cfungi cthan cmost cchemical
cdisinfection csystems.
In cagainst cthe crule castigmatism, cthe csteepest ccorneal cmeridian:
A. cIs cat cor cnear c45 cdegrees
B. cIs cat cor cnear c90 cdegrees
C. cIs cat cor cnear c135 cdegrees c
D. cIs cat cor cnear c180 cdegrees c- ccorrect canswers✔✔D. cIs cat cor cnear c180 cdegrees.
The cfollowing cRX crepresents:
OD: c+2.00 cPSH= c20/20
OS: c-3.00-2.00x180 c= c20/20
A. cAmblyopia
B. cAnisometropia
C. cAniseikona
D. cEmmetropia c- ccorrect canswers✔✔C. cAnisometropia
Tom's cspectacles cwith ca cpower cof c-12.00+0.50 cx c090, csit c10 cmm cin cfront cof chis ccornea.
cThe clikely csoft cContact clens cprescription cfor cTom cwould cbe?
A. c-12.50 cD
B. c-12.00 cD
C. c-11.75 cD
D. c-10.50 cD c- ccorrect canswers✔✔D. c-10.50 cD
Given cthe cfollowing crefraction cand cK creadings, cselect cthe ccorrect cbase ccurve cand cpower
crecordings-
K's c44.00 c@180 c/ c41.00 c@ c90
RX: c-1.00-3.00X090
A. c41.00 c/ c44.00 c| c-1.00 c/ c-3.00
B. c41.00 c/ c44.00 c| c-1.00 c/ c-4.00
C. c41.00 c/ c44.00 c| c-4.00 c/ c-1.00
D. c44.00 c/ c41.00 c| c-1.00 c/ c-3.00 c- ccorrect canswers✔✔B. c41.00 c/ c44.00 c| c-1.00 c/ c-4.00
, What cis cthe caverage cpH cvalue cof ca chuman ctear? c- ccorrect canswers✔✔7.4
Upon cremoval cof cthe ccrystalline clens, cthe cpatient cis: c
a. caphakic
b. cmyopic
c. chyperopic
d. castigmatic c- ccorrect canswers✔✔C. cHyperopic
If cfluorescein cevaluation creveals capical cstaining, cit ccould cbe cdue cto:
A. cA clens cthat cis ctoo csteep cand cloose.
B. cA clens cthat cis ctoo cflat cand ctight.
C. cCorneal cedema
D. cNeovascularization c- ccorrect canswers✔✔ABCD
Which cof cthe cfollowing cpreservatives chas ca clow cincidence cof cocular csensitivity cwith csoft
ccontact clenses? c
A. cChlorbutanol
B. cBenzalkonium cChloride
C. cSorbic cAcid
D. cThimerosal c- ccorrect canswers✔✔C. cSorbic cAcid
The cnormal ccornea cis ctransparent cdue cto cthe cpump caction ccreating cproper cfluid cbalance.
cWhich clayer cof cthe ccornea cis cmost cresponsible cfor cmaintaining cthis cfunction?
A. cBasal cMembrane
B. cBowmans cMembrane
C. cEndothelium
D. cEpithelium c- ccorrect canswers✔✔C. cEndothelium
Which cinstrument ccan cprovide csimultaneous cinformation cabout cthe ccornea, clids,
cconjunctiva, clashes, ccontact clens csurface cand cfit?
A. cRadiuscope
B. cCorneoscope
C. cSlit cLamp
D. cKeratometer c- ccorrect canswers✔✔C. cSlit cLamp
Which cof cthe cfollowing cmaterial ccomponents chas cthe chighest cgas cpermeability?
A. cFluorine
B. cPMMA
C. cButyrate
D. cSilicone c- ccorrect canswers✔✔D. cSilicone
Which cof cthe cfollowing cchoices cwould cwork cbest cfor cthe cpatient's cvisual cneeds cgiven cthe
cfollowing cinformation: cK's c44.00 c@ c180 c/ c45.25 c@ c90Rx c-3.00 c+0.25 cx c90
A. cRGP clens: c45.25 c-3.00
B. cRGP clens cwith ctoric cposterior ccurves
C. cSoft ctoric clens
QUESTIONS WITH DETAILED CORRECT
ANSWERS
Hydrogen cperoxide ccare csystems:
A. cShould cnot cbe cused cto cdisinfect cFDA cgroup cIV clenses.
B. cIs cmore ceffective cagainst cviruses cand cfungi cthan cmost cchemical cdisinfection csystems.
C. cDoes cnot crequire ca cred ctip con cits ccontainer, csince cit cdoes cnot ccause cpermanent
cdamage cif caccidental.
D. cTakes ca cminimum cof c2 chours cto cbe cdecomposed cinto cwater cand coxygen. c- ccorrect
canswers✔✔B. cIs cmore ceffective cagainst cviruses cand cfungi cthan cmost cchemical
cdisinfection csystems.
In cagainst cthe crule castigmatism, cthe csteepest ccorneal cmeridian:
A. cIs cat cor cnear c45 cdegrees
B. cIs cat cor cnear c90 cdegrees
C. cIs cat cor cnear c135 cdegrees c
D. cIs cat cor cnear c180 cdegrees c- ccorrect canswers✔✔D. cIs cat cor cnear c180 cdegrees.
The cfollowing cRX crepresents:
OD: c+2.00 cPSH= c20/20
OS: c-3.00-2.00x180 c= c20/20
A. cAmblyopia
B. cAnisometropia
C. cAniseikona
D. cEmmetropia c- ccorrect canswers✔✔C. cAnisometropia
Tom's cspectacles cwith ca cpower cof c-12.00+0.50 cx c090, csit c10 cmm cin cfront cof chis ccornea.
cThe clikely csoft cContact clens cprescription cfor cTom cwould cbe?
A. c-12.50 cD
B. c-12.00 cD
C. c-11.75 cD
D. c-10.50 cD c- ccorrect canswers✔✔D. c-10.50 cD
Given cthe cfollowing crefraction cand cK creadings, cselect cthe ccorrect cbase ccurve cand cpower
crecordings-
K's c44.00 c@180 c/ c41.00 c@ c90
RX: c-1.00-3.00X090
A. c41.00 c/ c44.00 c| c-1.00 c/ c-3.00
B. c41.00 c/ c44.00 c| c-1.00 c/ c-4.00
C. c41.00 c/ c44.00 c| c-4.00 c/ c-1.00
D. c44.00 c/ c41.00 c| c-1.00 c/ c-3.00 c- ccorrect canswers✔✔B. c41.00 c/ c44.00 c| c-1.00 c/ c-4.00
, What cis cthe caverage cpH cvalue cof ca chuman ctear? c- ccorrect canswers✔✔7.4
Upon cremoval cof cthe ccrystalline clens, cthe cpatient cis: c
a. caphakic
b. cmyopic
c. chyperopic
d. castigmatic c- ccorrect canswers✔✔C. cHyperopic
If cfluorescein cevaluation creveals capical cstaining, cit ccould cbe cdue cto:
A. cA clens cthat cis ctoo csteep cand cloose.
B. cA clens cthat cis ctoo cflat cand ctight.
C. cCorneal cedema
D. cNeovascularization c- ccorrect canswers✔✔ABCD
Which cof cthe cfollowing cpreservatives chas ca clow cincidence cof cocular csensitivity cwith csoft
ccontact clenses? c
A. cChlorbutanol
B. cBenzalkonium cChloride
C. cSorbic cAcid
D. cThimerosal c- ccorrect canswers✔✔C. cSorbic cAcid
The cnormal ccornea cis ctransparent cdue cto cthe cpump caction ccreating cproper cfluid cbalance.
cWhich clayer cof cthe ccornea cis cmost cresponsible cfor cmaintaining cthis cfunction?
A. cBasal cMembrane
B. cBowmans cMembrane
C. cEndothelium
D. cEpithelium c- ccorrect canswers✔✔C. cEndothelium
Which cinstrument ccan cprovide csimultaneous cinformation cabout cthe ccornea, clids,
cconjunctiva, clashes, ccontact clens csurface cand cfit?
A. cRadiuscope
B. cCorneoscope
C. cSlit cLamp
D. cKeratometer c- ccorrect canswers✔✔C. cSlit cLamp
Which cof cthe cfollowing cmaterial ccomponents chas cthe chighest cgas cpermeability?
A. cFluorine
B. cPMMA
C. cButyrate
D. cSilicone c- ccorrect canswers✔✔D. cSilicone
Which cof cthe cfollowing cchoices cwould cwork cbest cfor cthe cpatient's cvisual cneeds cgiven cthe
cfollowing cinformation: cK's c44.00 c@ c180 c/ c45.25 c@ c90Rx c-3.00 c+0.25 cx c90
A. cRGP clens: c45.25 c-3.00
B. cRGP clens cwith ctoric cposterior ccurves
C. cSoft ctoric clens
