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NCLE PRACTICE TEST PRACTICAL
EXAM QUESTIONS AND ANSWERS
2026
When trial lens fitting a soft lens patient, after placing the lens on the eye, you
should - correct-answer - Allow the lens to settle twenty minutes before
evaluating
Corneal epithelial edema will appear as - correct-answer - A grey haze, using a slit
lamp with sclerotic scatter and the unaided eye
Apical flourescein pooling under a rigid lens indicates - correct-answer - A tight fit
A dynamic flourescein pattern is best illuminated by - correct-answer - Cobalt
blue light
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An "ideal" flouorescein pattern for a spherical lens on a spherical cornea would
show - correct-answer - An even distribution of flourescein with added thickness
under the peripheral curves
When a rigid contact lens shows apical touch, this would indicate - correct-
answer - A flat fit
When a spectacle Rx exceeds __________ D, vertex distance must be
compensated for when determining the power of a contact lens - correct-answer
- ±4.00
Astigmatism that is left over after a contact lens is placed on the eye - correct-
answer - Residual Astigmatism
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Fenestrations are put into a lens to - correct-answer - Increase oxygen
transmission
When the power of a bifocal gradually changes from the central area of the lens
to the periphery, it is called - correct-answer - An aspheric lens
A bifocal design that utilizes a small central reading area and a distance periphery
is - correct-answer - Reverese Centrad
In the manufacturing process, when there is a polished front curve, a polished
back curve and a diameter, it is - correct-answer - Semi-finished lens
Back toric lens works with - correct-answer - High corneal toricity
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Single Cut aphakic contact lenses can be well suited for patients with - correct-
answer - small apertures and flat corneas
In bitoric lens fitting, rotation is controlled by - correct-answer - Relationship of
base curve to anterior corneal cylinder
The amount of prism ballast often used in ballasted lenses to prevent lens
rotation - correct-answer - 1.50D of prism
A aspheric PCC - correct-answer - Is a toric pcc and has a specific eccentricity
value
Diameter of a contact lens can be reduced by:
NCLE PRACTICE TEST PRACTICAL
EXAM QUESTIONS AND ANSWERS
2026
When trial lens fitting a soft lens patient, after placing the lens on the eye, you
should - correct-answer - Allow the lens to settle twenty minutes before
evaluating
Corneal epithelial edema will appear as - correct-answer - A grey haze, using a slit
lamp with sclerotic scatter and the unaided eye
Apical flourescein pooling under a rigid lens indicates - correct-answer - A tight fit
A dynamic flourescein pattern is best illuminated by - correct-answer - Cobalt
blue light
,2|Page
An "ideal" flouorescein pattern for a spherical lens on a spherical cornea would
show - correct-answer - An even distribution of flourescein with added thickness
under the peripheral curves
When a rigid contact lens shows apical touch, this would indicate - correct-
answer - A flat fit
When a spectacle Rx exceeds __________ D, vertex distance must be
compensated for when determining the power of a contact lens - correct-answer
- ±4.00
Astigmatism that is left over after a contact lens is placed on the eye - correct-
answer - Residual Astigmatism
,3|Page
Fenestrations are put into a lens to - correct-answer - Increase oxygen
transmission
When the power of a bifocal gradually changes from the central area of the lens
to the periphery, it is called - correct-answer - An aspheric lens
A bifocal design that utilizes a small central reading area and a distance periphery
is - correct-answer - Reverese Centrad
In the manufacturing process, when there is a polished front curve, a polished
back curve and a diameter, it is - correct-answer - Semi-finished lens
Back toric lens works with - correct-answer - High corneal toricity
, 4|Page
Single Cut aphakic contact lenses can be well suited for patients with - correct-
answer - small apertures and flat corneas
In bitoric lens fitting, rotation is controlled by - correct-answer - Relationship of
base curve to anterior corneal cylinder
The amount of prism ballast often used in ballasted lenses to prevent lens
rotation - correct-answer - 1.50D of prism
A aspheric PCC - correct-answer - Is a toric pcc and has a specific eccentricity
value
Diameter of a contact lens can be reduced by:
