NCLE Test Questions Part 1 with all Correct & 100%
Verified Answers |Actual Complete Update |Already
Graded A+
Which of the following medications may affect successful contact lens wear? a. antacids
b. antihistamines
c. aspirin
d. laxatives ✔Correct Answer-antihistamines
Which term refers to a sensitivity to light
A. presbyopia
B. Photophobia
C. Pannus
D. Ptosis ✔Correct Answer-Photophobia
The following is an example of what type of astigmatism? K's 42.50 @180 /40.50 @90
A. with the rule
B. Lenticular astigmatism
C. Against the rule
D. Irregular astigmatism ✔Correct Answer-Against the rule astigmatism
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-aqueous humor, tears and limbal blood vessels
Which instrument can provide simultaneous information about the cornea, lids, conjunctivitis,
lashes, contact lens surface and fit?
A. Radius scope
B. Corneascope
C. Slitlamp
D. Keratometer ✔Correct Answer-Slit lamp
The classic model of the pre-corneal tear film is composed of three layers what are they? -
✔Correct Answer-Lipids aqueous mucin
,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 manufacturers guidelines suggest a minimum of four hours for this disinfection, what
would you suggest to the patient
A.Never leave lenses in disinfectant overnight
B.2 to 3 hours is probably enough
C.Use surfactant cleaner and preserved saline
D. A minimum of four hours is required ✔Correct Answer-A minimum of four hours is
required
The main supply of oxygen to the corneal epithelium is derived from the
A.Stroma
B.Collagen fibrils
C.Basal membrane
D.Tear film - ✔Correct Answer-Tear film
What is the term for the condition in which there is loss of vision without any apparent disease
to the eye? ✔Correct Answer-amblyopia
Which auxiliary lens will extend the keratometer range to approximately 30.00D? ✔Correct
Answer--1.00
Which step should be performed first when taking keratometer measurements? ✔Correct
Answer-Focus the eyepiece
The following is an example of what type of astigmatism
K's 44.00 @180/ 44.50 @90
RX -3.00 -2.50 X 180 - ✔Correct Answer-Lenticular astigmatism
Ocular signs of aging include
A. Tear film abnormalities
B.Reduced lid elasticity
C.Lens opacities
D.Loss of accommodation ✔Correct Answer-Tear film abnormalities
Reduced lid elasticity
Lens opacities
Loss of accommodation
The pre-corneal tear film provides: ✔Correct Answer-A smooth optical surface, metabolic
nutrients to the epithelium
, What are the layers of the cornea? ✔Correct Answer-Epithelium, bowmans 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? ✔Correct Answer-
endothelium
A normal tear break-up time is: ✔Correct Answer-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? ✔Correct Answer-Arcus senilus
Patients with keratitis sicca are more prone to? ✔Correct Answer-Secondary infections
Upon removal of the crystalline lens the patient is? ✔Correct Answer-Aphakic
The following are RX represents
OD+2.00= 20/20
OS-3.00-2.00X180=20/20 - ✔Correct Answer-Anisometropia
This patient
OD+2.00= 20/20
OS-3.00-2.00X180=20/20
will best achieve stereopsis with which of the following modalities?
A. Contact lenses
B.Spectacles
C. IOL
D.Bifocals ✔Correct Answer-Contact lenses
Tom spectacles with the power of -12.00+0.50X 90, 10 mm in front of his cornea. The likely soft
contact lens prescription for Tom would be ✔Correct Answer-A -10. 50 dpt
The keratometer is an instrument used to measure? ✔Correct Answer-corneal curvature
The average lifespan of a corneal epithelium cell from mitosis through maturation and
desquamation most nearly approximates - ✔Correct Answer-One Week
Which auxiliary a trial lens will extend the keratometer range to approximately 61.00D?
✔Correct Answer-+1.25 D
Wearing lenses in high altitudes and dry environments may result in complaints of all but the
following?
A.Photophobia
Verified Answers |Actual Complete Update |Already
Graded A+
Which of the following medications may affect successful contact lens wear? a. antacids
b. antihistamines
c. aspirin
d. laxatives ✔Correct Answer-antihistamines
Which term refers to a sensitivity to light
A. presbyopia
B. Photophobia
C. Pannus
D. Ptosis ✔Correct Answer-Photophobia
The following is an example of what type of astigmatism? K's 42.50 @180 /40.50 @90
A. with the rule
B. Lenticular astigmatism
C. Against the rule
D. Irregular astigmatism ✔Correct Answer-Against the rule astigmatism
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-aqueous humor, tears and limbal blood vessels
Which instrument can provide simultaneous information about the cornea, lids, conjunctivitis,
lashes, contact lens surface and fit?
A. Radius scope
B. Corneascope
C. Slitlamp
D. Keratometer ✔Correct Answer-Slit lamp
The classic model of the pre-corneal tear film is composed of three layers what are they? -
✔Correct Answer-Lipids aqueous mucin
,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 manufacturers guidelines suggest a minimum of four hours for this disinfection, what
would you suggest to the patient
A.Never leave lenses in disinfectant overnight
B.2 to 3 hours is probably enough
C.Use surfactant cleaner and preserved saline
D. A minimum of four hours is required ✔Correct Answer-A minimum of four hours is
required
The main supply of oxygen to the corneal epithelium is derived from the
A.Stroma
B.Collagen fibrils
C.Basal membrane
D.Tear film - ✔Correct Answer-Tear film
What is the term for the condition in which there is loss of vision without any apparent disease
to the eye? ✔Correct Answer-amblyopia
Which auxiliary lens will extend the keratometer range to approximately 30.00D? ✔Correct
Answer--1.00
Which step should be performed first when taking keratometer measurements? ✔Correct
Answer-Focus the eyepiece
The following is an example of what type of astigmatism
K's 44.00 @180/ 44.50 @90
RX -3.00 -2.50 X 180 - ✔Correct Answer-Lenticular astigmatism
Ocular signs of aging include
A. Tear film abnormalities
B.Reduced lid elasticity
C.Lens opacities
D.Loss of accommodation ✔Correct Answer-Tear film abnormalities
Reduced lid elasticity
Lens opacities
Loss of accommodation
The pre-corneal tear film provides: ✔Correct Answer-A smooth optical surface, metabolic
nutrients to the epithelium
, What are the layers of the cornea? ✔Correct Answer-Epithelium, bowmans 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? ✔Correct Answer-
endothelium
A normal tear break-up time is: ✔Correct Answer-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? ✔Correct Answer-Arcus senilus
Patients with keratitis sicca are more prone to? ✔Correct Answer-Secondary infections
Upon removal of the crystalline lens the patient is? ✔Correct Answer-Aphakic
The following are RX represents
OD+2.00= 20/20
OS-3.00-2.00X180=20/20 - ✔Correct Answer-Anisometropia
This patient
OD+2.00= 20/20
OS-3.00-2.00X180=20/20
will best achieve stereopsis with which of the following modalities?
A. Contact lenses
B.Spectacles
C. IOL
D.Bifocals ✔Correct Answer-Contact lenses
Tom spectacles with the power of -12.00+0.50X 90, 10 mm in front of his cornea. The likely soft
contact lens prescription for Tom would be ✔Correct Answer-A -10. 50 dpt
The keratometer is an instrument used to measure? ✔Correct Answer-corneal curvature
The average lifespan of a corneal epithelium cell from mitosis through maturation and
desquamation most nearly approximates - ✔Correct Answer-One Week
Which auxiliary a trial lens will extend the keratometer range to approximately 61.00D?
✔Correct Answer-+1.25 D
Wearing lenses in high altitudes and dry environments may result in complaints of all but the
following?
A.Photophobia
