NCLE Practice Test ACTUAL UPDATED QUESTIONS AND CORRECT ANSWERS
A Correct Statement regarding epithelial cells is that they: d) have the ability to reproduce
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
Which of the following prescriptions indicates against- a)-4.50 +1.00 x75
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
When a keratometer is being calibrated, which of the c) a set of steel balls of known radii
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
,Inadequate movement of a soft lens can be corrected by b)has a smaller diameter
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
A long-term, successful, hydrogel contact lens wearer c) use of anti-histamines
suddenly develops dry eyes. Which of the following is
most likely to cause this problem?
a) Use of oxidative solution
b) use of rewetting drops
c) use of anti-histamines
d) Wearing of lenses in the wrong eyes
During slit-lamp evaluation, on upward gaze, a patient's a) a good fit
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
A new daily wearer of soft lenses returns for the first a) solution reaction
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
Which of the following is the mode of slit-lamp a) Retroillumination
illumination used to view the early stages of microcystic
edema?
a) Retroillumination
b) Direct illumination
c) Parrallelpiped
d) Oscillation
Which of the following changes is best able to improve b) Increasing Dk
oxygen transmissibility to a patient's cornea?
a) Increasing tear exchange
b) Increasing Dk
c) Increasing optical zone diameter
d) Increasing CN bevel
, In using fluorescein to evaluate the fit of a rigid lens of d) apical area, mid-peripheral area, and the lens edges should be assessed
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
Which of the following changes would improve a rigid b) Reduce overall diameter
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
Moving a +7.50 RX from the spectacle plane to the c) more plus power
corneal plane will require:
a) no change in power
b) more minus power
c) more plus power
d) less plus power
A fluorescein pattern that has a black area over the a) flat fit
corneal apex and a diffuse green area in the periphery
normally indicates:
a) flat fit
b) steep fit
c) normal fit
d) tight fit
IPC's are used to: a) provide a transition between the peripheral and base curves
a) provide a transition between the peripheral and base
curves
b) reduce edge thickness and lens mass
c) increase the optical zone
d) smooth the lens edge
A toric soft lens with an RX of -2.00 -1.25 x 120 has the axis a) 90 degrees
resting at the 5 o' clock position. What should the new
axis be when the lens is ordered?
a) 90 degrees
b) 105 degrees
c) 135 degrees
d) 150 degrees
A Correct Statement regarding epithelial cells is that they: d) have the ability to reproduce
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
Which of the following prescriptions indicates against- a)-4.50 +1.00 x75
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
When a keratometer is being calibrated, which of the c) a set of steel balls of known radii
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
,Inadequate movement of a soft lens can be corrected by b)has a smaller diameter
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
A long-term, successful, hydrogel contact lens wearer c) use of anti-histamines
suddenly develops dry eyes. Which of the following is
most likely to cause this problem?
a) Use of oxidative solution
b) use of rewetting drops
c) use of anti-histamines
d) Wearing of lenses in the wrong eyes
During slit-lamp evaluation, on upward gaze, a patient's a) a good fit
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
A new daily wearer of soft lenses returns for the first a) solution reaction
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
Which of the following is the mode of slit-lamp a) Retroillumination
illumination used to view the early stages of microcystic
edema?
a) Retroillumination
b) Direct illumination
c) Parrallelpiped
d) Oscillation
Which of the following changes is best able to improve b) Increasing Dk
oxygen transmissibility to a patient's cornea?
a) Increasing tear exchange
b) Increasing Dk
c) Increasing optical zone diameter
d) Increasing CN bevel
, In using fluorescein to evaluate the fit of a rigid lens of d) apical area, mid-peripheral area, and the lens edges should be assessed
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
Which of the following changes would improve a rigid b) Reduce overall diameter
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
Moving a +7.50 RX from the spectacle plane to the c) more plus power
corneal plane will require:
a) no change in power
b) more minus power
c) more plus power
d) less plus power
A fluorescein pattern that has a black area over the a) flat fit
corneal apex and a diffuse green area in the periphery
normally indicates:
a) flat fit
b) steep fit
c) normal fit
d) tight fit
IPC's are used to: a) provide a transition between the peripheral and base curves
a) provide a transition between the peripheral and base
curves
b) reduce edge thickness and lens mass
c) increase the optical zone
d) smooth the lens edge
A toric soft lens with an RX of -2.00 -1.25 x 120 has the axis a) 90 degrees
resting at the 5 o' clock position. What should the new
axis be when the lens is ordered?
a) 90 degrees
b) 105 degrees
c) 135 degrees
d) 150 degrees
