NCLE EXAM, PRACTICE EXAM AND STUDY GUIDE LATEST 2024 ACTUAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS ALREADY GRADED A+)
When a keratometric miers reflected off a soft contact lens are only clear when the wearer blinks, the lens fit is too-
a. small
b. large
c. steep
d. flat - Answer-c. steep
Transient keratometric mier distortion is usually due to-
a. pre-ocular tear film abnormalities
b. prolonged rigid lens wear
c. prolonged soft lens wear
d. irregular corneal astigmatism - Answer-a. pre-ocular tear film abnormalities
Assessment of the quality of the peripheral curves (blends of a rigid contact lens) is achieved by the use of the-
a. profile analyzer
b. shadow graph
c. keratometer
d. burton light - Answer-a. profile analyzer
Contact lens power should be specified in-
a. back vertex power
b. sphero-cylinder power
c. power in situ
d. posterier apical radius - Answer-a. back vertex power
The slit-lamp illumination that gives an overall view of the cornea but limits detail is-
a. sclerotic scatter
b. diffuse
c. specular reflection
d. oscilatory - Answer-b. diffuse
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