NCLE Test Questions WITH ANSWERS

NCLE Test Questions WITH ANSWERS
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Assessment of the quality of the peripheral curves |\ |\ |\ |\ |\ |\ |\ |\



(blends of a rigid contact lens) is achieved by the use of
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the-
a. profile analyzer
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b. shadow graph
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c. keratometer
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d. burton light - CORRECT ANSWERS ✔✔a. profile analyzer
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Contact lens power should be specified in-
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a. back vertex power
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b. sphero-cylinder power
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c. power in situ
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d. posterier apical radius - CORRECT ANSWERS ✔✔a. back
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vertex power
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The slit-lamp illumination that gives an overall view of the
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cornea but limits detail is-
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a. sclerotic scatter
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b. diffuse
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c. specular reflection
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,d. oscilatory - CORRECT ANSWERS ✔✔b. diffuse
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When a keratometric miers reflected off a soft contact
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lens are only clear when the wearer blinks, the lens fit is
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too-
a. small
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b. large
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c. steep
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d. flat - CORRECT ANSWERS ✔✔c. steep
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Transient keratometric mier distortion is usually due to-
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a. pre-ocular tear film abnormalities
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b. prolonged rigid lens wear
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c. prolonged soft lens wear
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d. irregular corneal astigmatism - CORRECT ANSWERS
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✔✔a. pre-ocular tear film abnormalities
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Epithelial edema which manifests itself clinically as
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central corneal haze, is verified by the slit lamp using
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sclerotic scatter illumination. What specific technique
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does the examiner use to see this condition?
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a. the naked eye and an angle between the slit lamp
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beam and the eye of 90˚
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,b. the blue cobalt filter of the slit lamp and an angle of
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about 45˚ |\




c. the green filter of the slit lamp with high magnification
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d. high magnification and an angle between the beam
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and scope of 180˚ - CORRECT ANSWERS ✔✔a. the naked
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eye and an angle between the slit lamp beam and the
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eye of 90˚ |\ |\




With a rigid contact lens in place a flourescein pattern
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shows a narrow bend horizontally wih a concentration of
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flourescein inferiorly and superiorly under the lens. Which |\ |\ |\ |\ |\ |\ |\



one of the following type of astigmatism is represented
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by this pattern?
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a. lenticular astigmatism
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b. residual astigmatism
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c. against the rule astigmatism
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d. with the rule astigmatism - CORRECT ANSWERS ✔✔d.
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with the rule astigmatism|\ |\ |\




Refractive Rx -3.00 -1.00 x 170 |\ |\ |\ |\ |\




K's 42.00 @ 170/43.00 @ 80
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Given the above Rx and K's he following diagnostic toric
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soft lens was used: |\ |\ |\




B.C. 8.8 |\




Power -3.00 -1.00 x 180 |\ |\ |\ |\

, During dianostic evalutation, the above lens rotated 10
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clockwise. The lens ordered should have an axis of:|\ |\ |\ |\ |\ |\ |\ |\




a. 10
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b. 180
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c. 170
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d. 160 - CORRECT ANSWERS ✔✔b. 180
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Given the same circumstances from the above question,
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once the correctly ordered lens has been dispensed, the
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rotational marks should settle at _______. |\ |\ |\ |\ |\




a. 6 o clock
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b. 10 clockwise rotation
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c. 10 counter clockwise rotation
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d. none of the above - CORRECT ANSWERS ✔✔b. 10
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clockwise rotation |\




An instrument that allows simultaneous verification of
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lens diameter, optic zone width, and peripheral curve
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width is: |\




a. measuring magnifier
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b. ophthalmometer
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c. profile analyzer
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d. radiuscope - CORRECT ANSWERS ✔✔a. measuring
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magnifier