NCLE FALL 2025 VERIFIED TEST QUESTIONS WITH ACCURATE SOLUTIONS
Assessment of the quality of the peripheral curves (blends of a rigid contact lens) is
achieved by the use of the-
a. profile analyzer
b. shadow graph
c. keratometer
d. burton light
a. profile analyzer
A _________ lens is a translating bifocal:
a. concentric
b. aspheric
c. deffractive
d. segmented
d. segmented
Given the following information: K's 42.50@180/42.50@90
Rx -3.00-1.00@90
Which of the following set of RGP lens specifications will best correct this wearers vision?
a. 42.50/43.50 -3.00-1.00x90
b. 42.50 -3.00-1.00x90 prism ballasted
c. 42.50 -3.00
d. 43.00 -3.50
,b. 42.50 -3.00-1.00x90 prism ballasted
Given the following information: K's 42.00@180/45.00@90
Rx -3.00-2.25x180
Which of the following set of RGP lens specifications will best correct this wearers vision?
a. 42.00/45.00 -3.00-2.25
b. 42.00 -3.00-2.75 x 177 prism ballasted
c. 42.00 -3.00
d. 45.00 -3.00
a. 42.00/45.00 -3.00-2.25
A warped lens will show___________ base curve(s) on the radiuscope and a ________ power
on the lensometer.
a. one/spherical
b. two/sphero-cylindrical
c. one/sphero-cylindrical
d. two/spherical
d. two/spherical
The pre-corneal tear film is composed of three distinct layers. They are:
,a. Lysozyme, oil, lacrimal
b. Sebacious, mucoid, BAK
c. lipid, lacrimal, mucin
d. water, mucoid, lysozyme
c. lipid, lacrimal, mucin
The pre-corneal tear film provides
1. A smooth optical surface
2. Metabolic nutrients
3. Endothelial reflex
4. Limbal Hyperemia
a. 1&3
b. 1&2
c. 2&3
d. 3&4
b. 1&2
The main supply of oxygen to the cornea is derived from the
a. Endothelium
b. Collagen Fibrils
c. Basal membrane
, d. Tears
d. Tears
The cornea has five distinct layers. In order from anterior (front) to posterior(back) they are:
a. Epithelium, Descemets membrane, Stroma, Bowmans membrane, Endothelium.
b. Endothelium, Stroma, Bowmans membrane, Descemets membrane, Epithelium.
c. Epithelium, Bowmans membrane, Stroma, Descemets membrane, Endothelium.
d. Endothelium, Bowmans membrane, Stroma, Descemets membrane, Epithelium.
c. Epithelium, Bowmans membrane, Stroma, Descemets membrane, Endothelium.
The normal cornea is transparent due to the pump action creating proper fluid balance.
Which layer of the cornea is most responsible for maintaining this function?
a. Endothelium
b. Basal membrane
c. Epithelium
d. Bowmans membrane
a. Endothelium
Assessment of the quality of the peripheral curves (blends of a rigid contact lens) is
achieved by the use of the-
a. profile analyzer
b. shadow graph
c. keratometer
d. burton light
a. profile analyzer
A _________ lens is a translating bifocal:
a. concentric
b. aspheric
c. deffractive
d. segmented
d. segmented
Given the following information: K's 42.50@180/42.50@90
Rx -3.00-1.00@90
Which of the following set of RGP lens specifications will best correct this wearers vision?
a. 42.50/43.50 -3.00-1.00x90
b. 42.50 -3.00-1.00x90 prism ballasted
c. 42.50 -3.00
d. 43.00 -3.50
,b. 42.50 -3.00-1.00x90 prism ballasted
Given the following information: K's 42.00@180/45.00@90
Rx -3.00-2.25x180
Which of the following set of RGP lens specifications will best correct this wearers vision?
a. 42.00/45.00 -3.00-2.25
b. 42.00 -3.00-2.75 x 177 prism ballasted
c. 42.00 -3.00
d. 45.00 -3.00
a. 42.00/45.00 -3.00-2.25
A warped lens will show___________ base curve(s) on the radiuscope and a ________ power
on the lensometer.
a. one/spherical
b. two/sphero-cylindrical
c. one/sphero-cylindrical
d. two/spherical
d. two/spherical
The pre-corneal tear film is composed of three distinct layers. They are:
,a. Lysozyme, oil, lacrimal
b. Sebacious, mucoid, BAK
c. lipid, lacrimal, mucin
d. water, mucoid, lysozyme
c. lipid, lacrimal, mucin
The pre-corneal tear film provides
1. A smooth optical surface
2. Metabolic nutrients
3. Endothelial reflex
4. Limbal Hyperemia
a. 1&3
b. 1&2
c. 2&3
d. 3&4
b. 1&2
The main supply of oxygen to the cornea is derived from the
a. Endothelium
b. Collagen Fibrils
c. Basal membrane
, d. Tears
d. Tears
The cornea has five distinct layers. In order from anterior (front) to posterior(back) they are:
a. Epithelium, Descemets membrane, Stroma, Bowmans membrane, Endothelium.
b. Endothelium, Stroma, Bowmans membrane, Descemets membrane, Epithelium.
c. Epithelium, Bowmans membrane, Stroma, Descemets membrane, Endothelium.
d. Endothelium, Bowmans membrane, Stroma, Descemets membrane, Epithelium.
c. Epithelium, Bowmans membrane, Stroma, Descemets membrane, Endothelium.
The normal cornea is transparent due to the pump action creating proper fluid balance.
Which layer of the cornea is most responsible for maintaining this function?
a. Endothelium
b. Basal membrane
c. Epithelium
d. Bowmans membrane
a. Endothelium
