NCLE Test Questions ACTUAL UPDATED QUESTIONS AND CORRECT
ANSWERS
Assessment of the quality of the peripheral curves a. profile analyzer
(blends of a rigid contact lens) is achieved by the use of
the-
a. profile analyzer
b. shadow graph
c. keratometer
d. burton light
Contact lens power should be specified in- a. back vertex power
a. back vertex power
b. sphero-cylinder power
c. power in situ
d. posterier apical radius
The slit-lamp illumination that gives an overall view of the b. diffuse
cornea but limits detail is-
a. sclerotic scatter
b. diffuse
c. specular reflection
d. oscilatory
,When a keratometric miers reflected off a soft contact c. steep
lens are only clear when the wearer blinks, the lens fit is
too-
a. small
b. large
c. steep
d. flat
Transient keratometric mier distortion is usually due to- a. pre-ocular tear film abnormalities
a. pre-ocular tear film abnormalities
b. prolonged rigid lens wear
c. prolonged soft lens wear
d. irregular corneal astigmatism
Epithelial edema which manifests itself clinically as central a. the naked eye and an angle between the slit lamp beam and the eye of 90˚
corneal haze, is verified by the slit lamp using sclerotic
scatter illumination. What specific technique does the
examiner use to see this condition?
a. the naked eye and an angle between the slit lamp
beam and the eye of 90˚
b. the blue cobalt filter of the slit lamp and an angle of
about 45˚
c. the green filter of the slit lamp with high magnification
d. high magnification and an angle between the beam
and scope of 180˚
With a rigid contact lens in place a flourescein pattern d. with the rule astigmatism
shows a narrow bend horizontally wih a concentration of
flourescein inferiorly and superiorly under the lens.
Which one of the following type of astigmatism is
represented by this pattern?
a. lenticular astigmatism
b. residual astigmatism
c. against the rule astigmatism
d. with the rule astigmatism
Refractive Rx -3.00 -1.00 x 170 b. 180
K's 42.00 @ 170/43.00 @ 80
Given the above Rx and K's he following diagnostic toric
soft lens was used:
B.C. 8.8
Power -3.00 -1.00 x 180
During dianostic evalutation, the above lens rotated 10
clockwise. The lens ordered should have an axis of:
a. 10
b. 180
c. 170
d. 160
, Given the same circumstances from the above question, b. 10 clockwise rotation
once the correctly ordered lens has been dispensed, the
rotational marks should settle at ___ _.
a. 6 o clock
b. 10 clockwise rotation
c. 10 counter clockwise rotation
d. none of the above
An instrument that allows simultaneous verification of a. measuring magnifier
lens diameter, optic zone width, and peripheral curve (the book says d. radiuscope)
width is:
a. measuring magnifier
b. ophthalmometer
c. profile analyzer
d. radiuscope
The instrument used for magnification of the edge of a b. shadowgraph
rigid CL is a ___ _.
a. radiuscope
b. shadowgraph
c. profile analysis
d. keratometer
Mary is wearing in her right eye RGP lens with a base c. +250
curve of 43.50 and a power of +2.75. The doctor refracts
-0.75 sphere over this lens. If you wish to order her a new
lens with a curve of 43.00, what will the new power be?
a. +1.50
b. +2.00
c. +2.50
d. +3.00
Which of the following could be considered in the fitting d. 1, 2 and 3
of a keratoconus patient
1. aspheric
2. McGuire
3. Soper
4. tangent streak
a. 1 & 2
b. 2 & 3
c. 3 & 4
d. 1, 2 and 3
ANSWERS
Assessment of the quality of the peripheral curves a. profile analyzer
(blends of a rigid contact lens) is achieved by the use of
the-
a. profile analyzer
b. shadow graph
c. keratometer
d. burton light
Contact lens power should be specified in- a. back vertex power
a. back vertex power
b. sphero-cylinder power
c. power in situ
d. posterier apical radius
The slit-lamp illumination that gives an overall view of the b. diffuse
cornea but limits detail is-
a. sclerotic scatter
b. diffuse
c. specular reflection
d. oscilatory
,When a keratometric miers reflected off a soft contact c. steep
lens are only clear when the wearer blinks, the lens fit is
too-
a. small
b. large
c. steep
d. flat
Transient keratometric mier distortion is usually due to- a. pre-ocular tear film abnormalities
a. pre-ocular tear film abnormalities
b. prolonged rigid lens wear
c. prolonged soft lens wear
d. irregular corneal astigmatism
Epithelial edema which manifests itself clinically as central a. the naked eye and an angle between the slit lamp beam and the eye of 90˚
corneal haze, is verified by the slit lamp using sclerotic
scatter illumination. What specific technique does the
examiner use to see this condition?
a. the naked eye and an angle between the slit lamp
beam and the eye of 90˚
b. the blue cobalt filter of the slit lamp and an angle of
about 45˚
c. the green filter of the slit lamp with high magnification
d. high magnification and an angle between the beam
and scope of 180˚
With a rigid contact lens in place a flourescein pattern d. with the rule astigmatism
shows a narrow bend horizontally wih a concentration of
flourescein inferiorly and superiorly under the lens.
Which one of the following type of astigmatism is
represented by this pattern?
a. lenticular astigmatism
b. residual astigmatism
c. against the rule astigmatism
d. with the rule astigmatism
Refractive Rx -3.00 -1.00 x 170 b. 180
K's 42.00 @ 170/43.00 @ 80
Given the above Rx and K's he following diagnostic toric
soft lens was used:
B.C. 8.8
Power -3.00 -1.00 x 180
During dianostic evalutation, the above lens rotated 10
clockwise. The lens ordered should have an axis of:
a. 10
b. 180
c. 170
d. 160
, Given the same circumstances from the above question, b. 10 clockwise rotation
once the correctly ordered lens has been dispensed, the
rotational marks should settle at ___ _.
a. 6 o clock
b. 10 clockwise rotation
c. 10 counter clockwise rotation
d. none of the above
An instrument that allows simultaneous verification of a. measuring magnifier
lens diameter, optic zone width, and peripheral curve (the book says d. radiuscope)
width is:
a. measuring magnifier
b. ophthalmometer
c. profile analyzer
d. radiuscope
The instrument used for magnification of the edge of a b. shadowgraph
rigid CL is a ___ _.
a. radiuscope
b. shadowgraph
c. profile analysis
d. keratometer
Mary is wearing in her right eye RGP lens with a base c. +250
curve of 43.50 and a power of +2.75. The doctor refracts
-0.75 sphere over this lens. If you wish to order her a new
lens with a curve of 43.00, what will the new power be?
a. +1.50
b. +2.00
c. +2.50
d. +3.00
Which of the following could be considered in the fitting d. 1, 2 and 3
of a keratoconus patient
1. aspheric
2. McGuire
3. Soper
4. tangent streak
a. 1 & 2
b. 2 & 3
c. 3 & 4
d. 1, 2 and 3
