NCLE ADVANCED CERTIFICATION EXAM TEST QUESTIONS WITH WELL EXPLAINED
SOLUTIONS
Ch1-1. Which layer of the cornea makes up 10% of the structure's total thickness?
A. Epithelium
B. Bowman's membrane
C. Endothelium
D. Stroma
D. Stroma
Ch1-2. The vertical measurement of the palpebral fissure for an average eye is
A. 5mm.
B. 10mm.
C. 15mm.
D. 20mm.
D. 20mm.
Ch1-3. The eyelid muscle responsible for closure of the lids is the
A. dilator pupillae.
B. orbicularis oculi.
C. levator superioris.
,D. pectoral blephari.
A. dilator pupillae
Ch1-4. The anterior cornea's main source of oxygen is the
A. atmosphere.
B. short posterior ciliary arteries.
C. aqueous humor.
D. central retinal vein.
C. Aqueous humor
Ch1-5. A dense opacity of the cornea is called a
A. dendrite.
B. nebula.
C. fovea.
D. leukoma.
B. nebula
Ch1-6. The refractive index of the tear film is
A. 0.1336.
B. 1.336.
,C. 13.36.
D. The tear film does not have an index of refraction.
B. 1.336
Ch1-7. The most common manifestation of keratoconjunctivitis sicca is
A. Riley-Day Syndrome.
B. Sjogren's Syndrome.
C. Aqueous Tear Deficiency.
D. Mucin Deficiency.
C. Aqueous Tear Deficiency
Ch1-8. Contact lens wear has been associated with decreased tear production most
possibly due to
A. The pressure from the lens on the lacrimal gland.
B. Decreased corneal sensation associated with contact lens wear.
C. Increased bacteria found in the tear film from contact lens use.
D. The lens absorbing the tear film.
B. Decreased corneal sensation associated with
contact lens wear.
Ch1-9. Mucin deficiency is most commonly caused by
, A. vitamin A deficiency.
B. an abundance of aqueous.
C. a decrease in production by the Krause and Wolfring glands.
D. lid abnormality.
A. vitamin A deficiency.
Ch1-10. A condition associated with scales and crusting at the base of the lashes, redness,
and irritation of the lid margins and a possible loss of lashes is called
A. Stevens-Johnson syndrome.
B. lipid abnormality.
C. blepharitis.
D. ocular dandruff.
C. blepharitis.
Ch1-11. Therapy for and prevention of blepharitis can be accomplished by
A. oral antibiotics.
B. topical antibiotics.
C. vitamin A.
D. routine lid hygiene.
D. routine lid hygiene.
SOLUTIONS
Ch1-1. Which layer of the cornea makes up 10% of the structure's total thickness?
A. Epithelium
B. Bowman's membrane
C. Endothelium
D. Stroma
D. Stroma
Ch1-2. The vertical measurement of the palpebral fissure for an average eye is
A. 5mm.
B. 10mm.
C. 15mm.
D. 20mm.
D. 20mm.
Ch1-3. The eyelid muscle responsible for closure of the lids is the
A. dilator pupillae.
B. orbicularis oculi.
C. levator superioris.
,D. pectoral blephari.
A. dilator pupillae
Ch1-4. The anterior cornea's main source of oxygen is the
A. atmosphere.
B. short posterior ciliary arteries.
C. aqueous humor.
D. central retinal vein.
C. Aqueous humor
Ch1-5. A dense opacity of the cornea is called a
A. dendrite.
B. nebula.
C. fovea.
D. leukoma.
B. nebula
Ch1-6. The refractive index of the tear film is
A. 0.1336.
B. 1.336.
,C. 13.36.
D. The tear film does not have an index of refraction.
B. 1.336
Ch1-7. The most common manifestation of keratoconjunctivitis sicca is
A. Riley-Day Syndrome.
B. Sjogren's Syndrome.
C. Aqueous Tear Deficiency.
D. Mucin Deficiency.
C. Aqueous Tear Deficiency
Ch1-8. Contact lens wear has been associated with decreased tear production most
possibly due to
A. The pressure from the lens on the lacrimal gland.
B. Decreased corneal sensation associated with contact lens wear.
C. Increased bacteria found in the tear film from contact lens use.
D. The lens absorbing the tear film.
B. Decreased corneal sensation associated with
contact lens wear.
Ch1-9. Mucin deficiency is most commonly caused by
, A. vitamin A deficiency.
B. an abundance of aqueous.
C. a decrease in production by the Krause and Wolfring glands.
D. lid abnormality.
A. vitamin A deficiency.
Ch1-10. A condition associated with scales and crusting at the base of the lashes, redness,
and irritation of the lid margins and a possible loss of lashes is called
A. Stevens-Johnson syndrome.
B. lipid abnormality.
C. blepharitis.
D. ocular dandruff.
C. blepharitis.
Ch1-11. Therapy for and prevention of blepharitis can be accomplished by
A. oral antibiotics.
B. topical antibiotics.
C. vitamin A.
D. routine lid hygiene.
D. routine lid hygiene.
