1|Page
NCLE ONLINE PRACTICE TEST 2025 | QUESTIONS
AND CORRECT ANSWERS | ALREADY GRADED A+ |
LATEST VERSION (JUST RELEASED)
A Correct Statement regarding epithelial cells is that they:
a)Comprise the posterior layer of the cornea
b)Are unable to regenerate
c)Comprise the thickest layer of the cornea
d) Have the ability to reproduce - (answers)d) have the ability to reproduce
Which of the following prescriptions indicates against-the-rule astigmatism?
a)-4.50 +1.00 x75
b)-4.50 +1.00 x 180
c)-4.50 -1.00 x 165
d)4.50 -1.00 x 180 - (answers)a)-4.50 +1.00 x75
When a keratometer is being calibrated, which of the following targets will
provide the most reliable result?
a)the single-cut anterior surface of a high-plus lens
b)a perfectly flat highly polished mirror
c) a set of steell balls of known radii
d)the unfinished posterior surface of a low-minus lens - (answers)c) a set of steel
balls of known radii
Inadequate movement of a soft lens can be corrected by using a lens that
a) has a steeper base curve
b) has a smaller diameter
c) has a larger diameter
d) has a higher water content - (answers)b)has a smaller diameter
A long-term, successful, hydrogel contact lens wearer suddenly develops dry eyes.
Which of the following is most likely to cause this problem?
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a) Use of oxidative solution
b) use of rewetting drops
c) use of anti-histamines
d) Wearing of lenses in the wrong eyes - (answers)c) use of anti-histamines
During slit-lamp evaluation, on upward gaze, a patient's soft contact lenses move
0.5 to 1mm when the patient blinks. These lenses are:
a) a good fit
b) too loose
c) too tight
d) too large - (answers)a) a good fit
A new daily wearer of soft lenses returns for the first follow up visit with itching,
burning, injected eyes. The most likely cause of these problems is:
a) solution reaction
b) giant-cell papillary conjunctivitis
c) a lens fit that is too loose
d) inability to wear soft lenses - (answers)a) solution reaction
Which of the following is the mode of slit-lamp illumination used to view the early
stages of microcystic edema?
a) Retroillumination
b) Direct illumination
c) Parrallelpiped
d) Oscillation - (answers)a) Retroillumination
Which of the following changes is best able to improve oxygen transmissibility to
a patient's cornea?
a) Increasing tear exchange
b) Increasing Dk
c) Increasing optical zone diameter
d) Increasing CN bevel - (answers)b) Increasing Dk
, 3|Page
In using fluorescein to evaluate the fit of a rigid lens of 9.0mm diameter on a
typical eye, a correct statement is that:
a) apical touch with pooling in the PPC curve area is preferred
b) apical toxicity may not be obvious
c) apical pooling with edge touch is recommended
d) apical area, mid-peripheral area, and the lens edges should be assessed -
(answers)d) apical area, mid-peripheral area, and the lens edges should be
assessed
Which of the following changes would improve a rigid contact lens fit that shows
sluggish movement after 1 hour of wear?
a) Add hyperflange edge treatment
b) Reduce overall diameter
c) Decrease center thickness
d) Increase overall diameter - (answers)b) Reduce overall diameter
Moving a +7.50 RX from the spectacle plane to the corneal plane will require:
a) no change in power
b) more minus power
c) more plus power
d) less plus power - (answers)c) more plus power
A fluorescein pattern that has a black area over the corneal apex and a diffuse
green area in the periphery normally indicates:
a) flat fit
b) steep fit
c) normal fit
d) tight fit - (answers)a) flat fit
IPC's are used to:
a) provide a transition between the peripheral and base curves
b) reduce edge thickness and lens mass
NCLE ONLINE PRACTICE TEST 2025 | QUESTIONS
AND CORRECT ANSWERS | ALREADY GRADED A+ |
LATEST VERSION (JUST RELEASED)
A Correct Statement regarding epithelial cells is that they:
a)Comprise the posterior layer of the cornea
b)Are unable to regenerate
c)Comprise the thickest layer of the cornea
d) Have the ability to reproduce - (answers)d) have the ability to reproduce
Which of the following prescriptions indicates against-the-rule astigmatism?
a)-4.50 +1.00 x75
b)-4.50 +1.00 x 180
c)-4.50 -1.00 x 165
d)4.50 -1.00 x 180 - (answers)a)-4.50 +1.00 x75
When a keratometer is being calibrated, which of the following targets will
provide the most reliable result?
a)the single-cut anterior surface of a high-plus lens
b)a perfectly flat highly polished mirror
c) a set of steell balls of known radii
d)the unfinished posterior surface of a low-minus lens - (answers)c) a set of steel
balls of known radii
Inadequate movement of a soft lens can be corrected by using a lens that
a) has a steeper base curve
b) has a smaller diameter
c) has a larger diameter
d) has a higher water content - (answers)b)has a smaller diameter
A long-term, successful, hydrogel contact lens wearer suddenly develops dry eyes.
Which of the following is most likely to cause this problem?
,2|Page
a) Use of oxidative solution
b) use of rewetting drops
c) use of anti-histamines
d) Wearing of lenses in the wrong eyes - (answers)c) use of anti-histamines
During slit-lamp evaluation, on upward gaze, a patient's soft contact lenses move
0.5 to 1mm when the patient blinks. These lenses are:
a) a good fit
b) too loose
c) too tight
d) too large - (answers)a) a good fit
A new daily wearer of soft lenses returns for the first follow up visit with itching,
burning, injected eyes. The most likely cause of these problems is:
a) solution reaction
b) giant-cell papillary conjunctivitis
c) a lens fit that is too loose
d) inability to wear soft lenses - (answers)a) solution reaction
Which of the following is the mode of slit-lamp illumination used to view the early
stages of microcystic edema?
a) Retroillumination
b) Direct illumination
c) Parrallelpiped
d) Oscillation - (answers)a) Retroillumination
Which of the following changes is best able to improve oxygen transmissibility to
a patient's cornea?
a) Increasing tear exchange
b) Increasing Dk
c) Increasing optical zone diameter
d) Increasing CN bevel - (answers)b) Increasing Dk
, 3|Page
In using fluorescein to evaluate the fit of a rigid lens of 9.0mm diameter on a
typical eye, a correct statement is that:
a) apical touch with pooling in the PPC curve area is preferred
b) apical toxicity may not be obvious
c) apical pooling with edge touch is recommended
d) apical area, mid-peripheral area, and the lens edges should be assessed -
(answers)d) apical area, mid-peripheral area, and the lens edges should be
assessed
Which of the following changes would improve a rigid contact lens fit that shows
sluggish movement after 1 hour of wear?
a) Add hyperflange edge treatment
b) Reduce overall diameter
c) Decrease center thickness
d) Increase overall diameter - (answers)b) Reduce overall diameter
Moving a +7.50 RX from the spectacle plane to the corneal plane will require:
a) no change in power
b) more minus power
c) more plus power
d) less plus power - (answers)c) more plus power
A fluorescein pattern that has a black area over the corneal apex and a diffuse
green area in the periphery normally indicates:
a) flat fit
b) steep fit
c) normal fit
d) tight fit - (answers)a) flat fit
IPC's are used to:
a) provide a transition between the peripheral and base curves
b) reduce edge thickness and lens mass
