NCLE Exam Practice with all Correct & 100% Verified
Answers |Actual Complete Update |Already Graded A+
(Just Released)
Which of the following medications may affect successful contact lens wear?
A. Antacids
B. Antihistamines
C. Aspirin
D. Laxatives ✔Correct Answer-B. Antihistamines
Which term refers to a sensitivity to light?
A. Presbyopia
B. Photophobia
C. Pannus
D. Ptosis ✔Correct Answer-B. Photophobia
The following is an example of what type of astigmatism?
K's 42.50 @ .50 @ 090
A. With-the-rule
B. Lenticular
C. Against-the-rule
D. Irregular ✔Correct Answer-C. Against-the-rule
The cornea receives nutrients from:
1. Aqueous humor
2. Tears
3. Limbal blood vessels
4. Orbicularis occuli
A. 1, 3, 4
B. 2, 3
C. 1, 2, 3
D. 3, 4 ✔Correct Answer-C. 1,2,3
The increased loss of ability of the crystalline lens to accommodate is called
A. Presbyopia
B. Myopia
C. Hyperopia
D. Aphakia ✔Correct Answer-A. Presbyopia
,Which instrument can provide simultaneous information about the cornea, lids, conjunctiva,
lashes, contact lens surface and fit?
A. Radiuscope
B. Corneascope
C. Slit lamp
D. Keratometer ✔Correct Answer-C. Slit lamp
The classic model of the pre-corneal tear film is composed of three layers which are
A. Lysozyme, oil, lacrimal
B. Sebaceous, mucoid, BAK
C. Lipid, aqueous, mucin
D. Water, mucoid, lysozyme ✔Correct Answer-C. Lipid, aqueous, mucin
Transpose the following RX into minus cylinder form
RX -4.50 +1.25 x 094
A. -3.25 -1.25 x 004
B. -3.25 -1.25 x 094
C. -4.50 -1.25 x 004
D. -5.75 -1.25 x 004 ✔Correct Answer-A. -3.25 -1.25 x 004
The average pH value of the human tear is
A. 6.6
B. 7.4
C. 7.8
D. 10.0 ✔Correct Answer-B. 7.4
If the manufacturer's guidelines suggest a minimum of 4 hours of disinfection, what would you
suggest to the patient?
A. Never leave lenses in disinfectant overnight
B. 2-3 hours is probably enough
C. Use surfactant cleaner and preserved saline
D. A minimum of 4 hours is required ✔Correct Answer-D. A minimum of 4 hours is required
The main supply of oxygen to the cornea epithelium is derived from the
A. Stroma
B. Collagen fibrils
C. Basal membrane
D. Tear film ✔Correct Answer-D. Tear film
What is the term for the condition in which there is loss of vision without any apparent disease
of the eye?
A. Amblyopia
B. Aniridia
C. Astigmatism
,D. Aphakia ✔Correct Answer-A. Amblyopia
Which auxiliary trial lens will extend the keratometer range to approximately 30.00 D?
A. +1.00 D
B. +1.25 D
C. -1.00 D
D. -1.50 D ✔Correct Answer-C. -1.00 D
Which steps should be performed first when taking keratometer measurements?
A. Rotate the drum to reflect the cylinder axis
B. Adjust the patient so that they are comfortable
C. Focus the eyepiece
D> Cover the patient's eye that is not being measured ✔Correct Answer-C. Focus the eyepiece
The following is an example of what type of astigmatism?
K's 44.00 @ .50 @ 090
RX -3.00 -2.50 x 180
A. Lenticular
B. Against-the-rule
C. Irregular
D. Oblique ✔Correct Answer-A. Lenticular
Ocular signs of aging include
1. Tear film abnormalities
2. Reduced lid elasticity
3. Lens opacities
4. Loss of accommodation
A. 1 only
B. 1, 3
C. 2, 4
D. All the above ✔Correct Answer-D. All the above
Transpose the following RX into minus cylinder form
RX +1.50 +1.00 x 075
A. +1.50 -1.00 x 075
B. +2.50 -1.00 x 075
C. +2.50 -1.00 x 165
D. +2.50 -1.00 x 175 ✔Correct Answer-C. +2.50 -1.00 x 165
The pre-corneal tear film provides
1. A smooth optical surface
2. Metabolic nutrients to the epithelium
3. Oxygen to the endothelium
, 4. Limbal hyperemia
A. 1,3
B. 1,2
C. 2,3
D. 3,4 ✔Correct Answer-b. 1,2
The cornea has five distinct layers. In order from anterior to posterior they are
A. Epithelium, Descemet's membrane, Stroma, Bowman's layer, Endothelium
B. Endothelium, Stroma, Bowman's layer, Descemet's membrane, epithelium
C. Epithelium, Bowman's layer, Stroma, Descemet's membrane, Endothelium
D. Endothelium, Bowman's layer, Stroma, Descemet's membrane, Epithelium ✔Correct
Answer-C. Epithelium, Bowman's layer, Stroma, Descemet's 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. Bowman's layer ✔Correct Answer-A. Endothelium
A normal tear break-up time is
A. 6-7 seconds
B. 10-12 seconds
C. Less than 5 seconds
D. More than 20 seconds ✔Correct Answer-B. 10-12 seconds
A whitish haze in the peripheral corneal stroma which does not stain and is often seen in the
elderly is known as
A. Neovascularization
B. Dellen
C. Arcus Senilus
D. Fuch's dystrophy ✔Correct Answer-C. Arcus Senilus
Patients with keratitis sicca are more prone to
A. Secondary infections
B. Loss of eyelashes
C. Losing their contact lenses
D. Steeping corneas ✔Correct Answer-A. Secondary infections
Upon removal of the crystalline lens the patient is
A. Aphakic
B. Myopia
C. Hyperopia
Answers |Actual Complete Update |Already Graded A+
(Just Released)
Which of the following medications may affect successful contact lens wear?
A. Antacids
B. Antihistamines
C. Aspirin
D. Laxatives ✔Correct Answer-B. Antihistamines
Which term refers to a sensitivity to light?
A. Presbyopia
B. Photophobia
C. Pannus
D. Ptosis ✔Correct Answer-B. Photophobia
The following is an example of what type of astigmatism?
K's 42.50 @ .50 @ 090
A. With-the-rule
B. Lenticular
C. Against-the-rule
D. Irregular ✔Correct Answer-C. Against-the-rule
The cornea receives nutrients from:
1. Aqueous humor
2. Tears
3. Limbal blood vessels
4. Orbicularis occuli
A. 1, 3, 4
B. 2, 3
C. 1, 2, 3
D. 3, 4 ✔Correct Answer-C. 1,2,3
The increased loss of ability of the crystalline lens to accommodate is called
A. Presbyopia
B. Myopia
C. Hyperopia
D. Aphakia ✔Correct Answer-A. Presbyopia
,Which instrument can provide simultaneous information about the cornea, lids, conjunctiva,
lashes, contact lens surface and fit?
A. Radiuscope
B. Corneascope
C. Slit lamp
D. Keratometer ✔Correct Answer-C. Slit lamp
The classic model of the pre-corneal tear film is composed of three layers which are
A. Lysozyme, oil, lacrimal
B. Sebaceous, mucoid, BAK
C. Lipid, aqueous, mucin
D. Water, mucoid, lysozyme ✔Correct Answer-C. Lipid, aqueous, mucin
Transpose the following RX into minus cylinder form
RX -4.50 +1.25 x 094
A. -3.25 -1.25 x 004
B. -3.25 -1.25 x 094
C. -4.50 -1.25 x 004
D. -5.75 -1.25 x 004 ✔Correct Answer-A. -3.25 -1.25 x 004
The average pH value of the human tear is
A. 6.6
B. 7.4
C. 7.8
D. 10.0 ✔Correct Answer-B. 7.4
If the manufacturer's guidelines suggest a minimum of 4 hours of disinfection, what would you
suggest to the patient?
A. Never leave lenses in disinfectant overnight
B. 2-3 hours is probably enough
C. Use surfactant cleaner and preserved saline
D. A minimum of 4 hours is required ✔Correct Answer-D. A minimum of 4 hours is required
The main supply of oxygen to the cornea epithelium is derived from the
A. Stroma
B. Collagen fibrils
C. Basal membrane
D. Tear film ✔Correct Answer-D. Tear film
What is the term for the condition in which there is loss of vision without any apparent disease
of the eye?
A. Amblyopia
B. Aniridia
C. Astigmatism
,D. Aphakia ✔Correct Answer-A. Amblyopia
Which auxiliary trial lens will extend the keratometer range to approximately 30.00 D?
A. +1.00 D
B. +1.25 D
C. -1.00 D
D. -1.50 D ✔Correct Answer-C. -1.00 D
Which steps should be performed first when taking keratometer measurements?
A. Rotate the drum to reflect the cylinder axis
B. Adjust the patient so that they are comfortable
C. Focus the eyepiece
D> Cover the patient's eye that is not being measured ✔Correct Answer-C. Focus the eyepiece
The following is an example of what type of astigmatism?
K's 44.00 @ .50 @ 090
RX -3.00 -2.50 x 180
A. Lenticular
B. Against-the-rule
C. Irregular
D. Oblique ✔Correct Answer-A. Lenticular
Ocular signs of aging include
1. Tear film abnormalities
2. Reduced lid elasticity
3. Lens opacities
4. Loss of accommodation
A. 1 only
B. 1, 3
C. 2, 4
D. All the above ✔Correct Answer-D. All the above
Transpose the following RX into minus cylinder form
RX +1.50 +1.00 x 075
A. +1.50 -1.00 x 075
B. +2.50 -1.00 x 075
C. +2.50 -1.00 x 165
D. +2.50 -1.00 x 175 ✔Correct Answer-C. +2.50 -1.00 x 165
The pre-corneal tear film provides
1. A smooth optical surface
2. Metabolic nutrients to the epithelium
3. Oxygen to the endothelium
, 4. Limbal hyperemia
A. 1,3
B. 1,2
C. 2,3
D. 3,4 ✔Correct Answer-b. 1,2
The cornea has five distinct layers. In order from anterior to posterior they are
A. Epithelium, Descemet's membrane, Stroma, Bowman's layer, Endothelium
B. Endothelium, Stroma, Bowman's layer, Descemet's membrane, epithelium
C. Epithelium, Bowman's layer, Stroma, Descemet's membrane, Endothelium
D. Endothelium, Bowman's layer, Stroma, Descemet's membrane, Epithelium ✔Correct
Answer-C. Epithelium, Bowman's layer, Stroma, Descemet's 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. Bowman's layer ✔Correct Answer-A. Endothelium
A normal tear break-up time is
A. 6-7 seconds
B. 10-12 seconds
C. Less than 5 seconds
D. More than 20 seconds ✔Correct Answer-B. 10-12 seconds
A whitish haze in the peripheral corneal stroma which does not stain and is often seen in the
elderly is known as
A. Neovascularization
B. Dellen
C. Arcus Senilus
D. Fuch's dystrophy ✔Correct Answer-C. Arcus Senilus
Patients with keratitis sicca are more prone to
A. Secondary infections
B. Loss of eyelashes
C. Losing their contact lenses
D. Steeping corneas ✔Correct Answer-A. Secondary infections
Upon removal of the crystalline lens the patient is
A. Aphakic
B. Myopia
C. Hyperopia
