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NCLE Advanced Certification Exam 2025 |
Certified Questions With Answers And
Rationales
Cast or injection molding is accomplished by injecting a liquid monomer between
a male and female set of molds. These molds determine both the posterior and
the anterior set of curves - Correct-answer-77. Which method of manufacturing
soft lenses uses a liquid monomer injected between molds?
A. Spin casting
B. Cast molding
C. Lathe cutting
D. Hydro molding
The answer is B.
The increased water content allows for a greater exchange of oxygen through the
lens material and is the reason they are approved for extended wear. - Correct-
answer-78. Another term for modulus is?
A. Wettability
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B. Durability
C. Stiffness
D. Wearability
The answer is B.
Add the over refraction's sphere power to the diagnostic lens's spherical power.
This results in -2.75. Tag on the amount and axis of the cylinder found in the over-
refraction (-1.75 ex 10). Since the lens rotates to the left, the amount of rotation is
added to the refractive axis, so the axis of the lens ordered for the patient should
be 20 degrees. - Correct-answer-79. A diagnostic soft toric lens without cylinder
has the following parameters:
8.9 -3.25 14.5 1 ½ prism ballast
An over-refraction shows: +0.50 -1.75 cx 10
The diagnostic lens rotates to your left 10 degrees. What lens parameters would
you order?
A. 8.9 -2.75 -1.75 cx 10 14.5
B. 8.9 -2.75 -1.75 cx 20 14.5
C. 8.9 -2.75 -1.75 cx 180 14.5
D. 8.9 -3.25 -1.75 cx 180 14.5
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The answer is D.
Increasing the overall diameter would further tighten the soft lens on the eye and
would be contraindicated in this case. Decreasing the diameter would loosen the
lens, but if the radius of curvature was decreased (e.g. 9.0 mm is looser than 8.7
mm}, it would counter-act the effect of decreasing the diameter. Only the
combination of decreasing the diameter .and increasing the radius of curvature
will loosen fit and eliminate the depression caused by a tight lens. - Correct-
answer-80. If a toric lens is too tight:
A. The patient will notice post-blink clarity followed blur
B. It will cause discomfort due to inferior edge standoff
C. It will fail to maintain stable orientation between blinks
D. The patient will notice post-blink blur followed by slow clearing
The answer is B.
Epithelial cells start out in a columnar or basal shape in the posterior portion of
the epithelium, flattening into wing cells out as they rise to the surface and slough
off as squamous cells into the tear film. - Correct-answer-81. The three most
distinct types of cells in the epithelium in order from posterior to anterior are:
A. Basal, squamous, wing
B. Basal, wing, squamous
C. Squamous, wing, basal
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D. Squamous, basal, wing
The answer is A.
Knowing the layers of the cornea in order, as well as their function, is very
important. - Correct-answer-82. The five layers of the cornea in order from
anterior to posterior are:
A. Epithelium, Bowman ' s membrane, Strama, Descemet's membrane,
Endothelium
B. Epithelium, Stroma, Bowman's membrane, Descernet's membrane,
Endothelium
C. Epithelium, Descemet's membrane, Bowman's membrane, Stroma,
Endothelium
D. Epithelium, Descemet's membrane, Stroma, Bowman's membrane,
Endothelium
The answer is D.
The cornea must stay relatively dehydrated to remain clear. If fluid is allowed to
collect in the stroma, corneal edema will occur. The endothelium is the cell layer
most responsible for the removal of excess fluid through a pumping mechanism.
Descemet's membrane is simply the fourth layer of the cornea and is the
NCLE Advanced Certification Exam 2025 |
Certified Questions With Answers And
Rationales
Cast or injection molding is accomplished by injecting a liquid monomer between
a male and female set of molds. These molds determine both the posterior and
the anterior set of curves - Correct-answer-77. Which method of manufacturing
soft lenses uses a liquid monomer injected between molds?
A. Spin casting
B. Cast molding
C. Lathe cutting
D. Hydro molding
The answer is B.
The increased water content allows for a greater exchange of oxygen through the
lens material and is the reason they are approved for extended wear. - Correct-
answer-78. Another term for modulus is?
A. Wettability
,2|Page
B. Durability
C. Stiffness
D. Wearability
The answer is B.
Add the over refraction's sphere power to the diagnostic lens's spherical power.
This results in -2.75. Tag on the amount and axis of the cylinder found in the over-
refraction (-1.75 ex 10). Since the lens rotates to the left, the amount of rotation is
added to the refractive axis, so the axis of the lens ordered for the patient should
be 20 degrees. - Correct-answer-79. A diagnostic soft toric lens without cylinder
has the following parameters:
8.9 -3.25 14.5 1 ½ prism ballast
An over-refraction shows: +0.50 -1.75 cx 10
The diagnostic lens rotates to your left 10 degrees. What lens parameters would
you order?
A. 8.9 -2.75 -1.75 cx 10 14.5
B. 8.9 -2.75 -1.75 cx 20 14.5
C. 8.9 -2.75 -1.75 cx 180 14.5
D. 8.9 -3.25 -1.75 cx 180 14.5
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The answer is D.
Increasing the overall diameter would further tighten the soft lens on the eye and
would be contraindicated in this case. Decreasing the diameter would loosen the
lens, but if the radius of curvature was decreased (e.g. 9.0 mm is looser than 8.7
mm}, it would counter-act the effect of decreasing the diameter. Only the
combination of decreasing the diameter .and increasing the radius of curvature
will loosen fit and eliminate the depression caused by a tight lens. - Correct-
answer-80. If a toric lens is too tight:
A. The patient will notice post-blink clarity followed blur
B. It will cause discomfort due to inferior edge standoff
C. It will fail to maintain stable orientation between blinks
D. The patient will notice post-blink blur followed by slow clearing
The answer is B.
Epithelial cells start out in a columnar or basal shape in the posterior portion of
the epithelium, flattening into wing cells out as they rise to the surface and slough
off as squamous cells into the tear film. - Correct-answer-81. The three most
distinct types of cells in the epithelium in order from posterior to anterior are:
A. Basal, squamous, wing
B. Basal, wing, squamous
C. Squamous, wing, basal
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D. Squamous, basal, wing
The answer is A.
Knowing the layers of the cornea in order, as well as their function, is very
important. - Correct-answer-82. The five layers of the cornea in order from
anterior to posterior are:
A. Epithelium, Bowman ' s membrane, Strama, Descemet's membrane,
Endothelium
B. Epithelium, Stroma, Bowman's membrane, Descernet's membrane,
Endothelium
C. Epithelium, Descemet's membrane, Bowman's membrane, Stroma,
Endothelium
D. Epithelium, Descemet's membrane, Stroma, Bowman's membrane,
Endothelium
The answer is D.
The cornea must stay relatively dehydrated to remain clear. If fluid is allowed to
collect in the stroma, corneal edema will occur. The endothelium is the cell layer
most responsible for the removal of excess fluid through a pumping mechanism.
Descemet's membrane is simply the fourth layer of the cornea and is the
