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Opthalmology Questions- MCQs with answers
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07.04.05 (3 years ago)
#1
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Subject : Opthalmology
Type : medium
1 Complications of keratoconjuctivitis Sicca
A Corneal Ulceration
B Lacrimal Hypersecretion
C Viral Conjuctivitis
D Crocodile Tears
E Excessive mucus Secretion
Correct Answer : (A)
Explaination :
Keratoconjuctivitis Sicca (KCS), also known as Dry Eye syndrome is associated with decreased tear production. Lacrimal Hypersecretion and Crocodile tears (paradoxical lacrimation) are both increased tear production so they are incorrect and viral conjunctivitis can occur in any case even in a normal eye so that too is incorrect and excessive mucus secretion is a symptom and not a complication of KCS.
The correct answer is Corneal Ulceration because absence of tears leads to irritation of the cornea and ulcer formation and scarring
2 Which one of the following is not a benign tumor of the lid ?
A Nevus
B Xanthelsma
C Verrucae
D Tuberous Sclerosis
E Molluscum Contagiosum
Correct Answer (D)
Explaination :
Tuberous Sclerosis is a primary benign intraocular tumor located in any portion of the posterior fundus with a predilection for the area near the optic nerve. Whereas all others are benign tumors of the lid.
3 Granulated eyelids is:
A Hordeolum
B Marginal blepharitis
C Chalazion
D Entropion
E Meibomainitis
Correct answer (B)
Explaination :
Marginal Blepharitis is also known as granulated eyelids because of the presence of SCALES or GRANULATIONS on the eye lashes of both the eyelids.
4 Treatment contraindicated in dendritic keratitis :
A Homatropine 5%
B Cryotherapy
C Antibiotics
D Corticosteroids
E Antiviral Drugs
Correct Answer (D)
Explaination :
Homatropine relieves photophobis so it is indicated
Cryotherapy denudes the diseased epithelium
Antibiotics to prevent secondary bacterial infections
Antiviral drugs are indicated as this is caused by herpes simplex virus
Corticosteroidsis contraindicated because it increases the activity of the virusby immune suppressionand by enhancing the action of collagenase (produced by damaged corneal epithelial cells) on corneal stroma.
5 Which one of the following is not a degenerative corneal disease?
A Band Keratopathy
B Marginal Dystrophy
C Fatty or lipoid degeneration
D Mooren’s Ulcer
E Keratoconus
Correct Answer (D)
Explaination :
Mooren’s Ulcer or chronic serpiginous ulcer is a corneal ulcer of unknown etiology or could be associated with trauma at times.It is the only non degenerative condition.
6 Which one of the following is a cause of pseudoexopthalmos?
A Myopia
B Tenonitis
C Aneurysms
D Cellulitis
E Tumors
Correct Answer : (A)
Explaination :
Tendonitis and cellulites are the causes of inflammatory exopthalmous.Aneurysms cause pulsating exopthalmus and tumors are space occupying lesions that result in exopthalmus. So the correct answer is Myopia because it is not a true Exopthalmic condition.
7 Syndrome that does not affect the cranial nerves III, IV, VI is :
A Weber’s Syndrome
B Foville’s Syndrome
C Benedict’s Syndrome
D Millerad-Gubler’s Syndrome
E Struge-Weber’s Syndrome
Correct Answer : (E)
Explaination :
Struge weber only affects the V th cranil nerve.
8 tendency for one eye to turn inwards is :
A Esotropia
B Exotropia
C Esophoria
D Exophoria
E Orthophoria
Correct Answer ( C )
Explaination :
Esotropia Convergent Strabismus (Crossed eyes)
Exotropia Divergent Strabismus (Wall eyes)
Exophoria tendency for one eye to turn outwards
Orthophoria The absence of any tendency of either eye to deviate when fusion is suspended.
Esophoria tendency for one eye to turn inwards
9 Function of superior oblique muscle:
A Elevation, adduction,intorsion
B Depression, adduction, extorsion
C Depression,intorsion,abduction
D Elevation ,extorsion,abduction
E Abduction only
Correct Answer ( C )
Explaination :
Elevation, adduction,intorsion Superior rectus
Depression, adduction, extorsion Inferior rectus
Elevation ,extorsion,abduction Inferior Oblique
Abduction only Lateral rectus
Depression,intorsion,abduction Superior oblique
10.Occular Pain is absent in
A Narrow Angle Glaucoma
B Wide Angle Glaucoma
C Conjuctivitis
D Keratitis
E uvetis
Correct Answer : ( B)
Explaination :
In Wide angle glaucoma, the disease is very slowly progressive,with visual field defects but no Pain. In all other conditions ,Pain is an important feature.
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