Past Part 1 MRCOphth: 15
1. Herpes simplex:
a. herpetic keratitis is usually caused by type 1 herpes simplex
b. is a RNA virus
c. is sensitive to ganciclovir
d. causes congenital cataract
e. causes PORN (progressive outer retina necrosis)
2. Subretinal fluid contains:
a. g-globulin
b. hyaluronic acid
c. fibrinogen
d. ascorbic acid
e. protein concentration is higher than the serum
3. Regarding the ocular cardiac reflex:
a. the afferent is through the trigeminal nerve
b. it is mediated through the vagus nerve
c. it only occurs in children
d. it is suppressed by atropine
e. it is more common in retrobulbar than peribulbar anaesthesia
4. The aetiologies of congenital cataract include:
a. toxoplasmosis
b. Refsum's disease
c. anirida
d. thalassaemia
e. congenital icthyosis
5. Chloroquine:
a. is a slow acting anti-rheumatic drug
b. is ototoxic
c. its usual dosage is 200mg b.d.
d. bull's eye maculopathy is reversible
e. premaculopathy can be detected by visual field
6. The following arises from the neural crest:
a. corneal stroma
b. corneal endothelium
c. uveal melanophore
d. retinal vessel endothelium
e. trabecular meshwork
7. The following are found in the lower pons:
a. inferior salivatory nucleus
b. inferior olivary nucleus
c. facial nucleus
d. abducent nucleus
e. nucleus of descending spinal tract
8. Regarding the venous drainage of the eyeball:
a. anterior ciliary artery drains into the anterior ciliary vein
b. short posterior ciliary artery drains into the central retinal vein
c. iris drains into vortex vein
d. episcleral venous pressure is always negative
e. choroidal venous pressure always greater than the intraocular pressure
9. Blood supply of the optic nerve include:
a. branches of the central retinal artery
b. branches of the long posterior ciliary artery
c. main contribution from the central vessels of the optic nerve
d. contributed by choroidal vessels
e. branches of the pial vessels
10. b-blockers:
a. are all lipid soluble
b. universally decreases the heart rate
c. prevents cathecholamine from acting on the receptors
d. causes dry eyes
e. increases uveoscleral outflow
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