Opthalmology

Question 1

action of acetazolamide

Answer 1

carbonic anhydrase inhibitor
diuretic which increases drainage of aqeous humour

Question 2

action of pilocarpine

Answer 2

muscarinic agonist
decreases secretion of aqueous humur and causes contraction of cilliary muscles which opens tribecular meshwork to increase outflow

Question 3

action of latanoprost

Answer 3

prostaglandin
decreases resistance of flow out uveoscleral pathway, reduces secretion aqeous humor

Question 4

what anti glaucoma medication causes constricted pupil

Answer 4

muscarinic agonists e.g. pilocarpine - cilliary muscle contraction

alpha blockers e.g. epinephrine

Question 5

anti glucoma medication which causes browning of the iris and eyelash growth

Answer 5

prostaglandins i.e. latanoprost

Question 6

whats the pupil like in acute angle closure glaucoma and what medications are contraindicated

Answer 6

half dilated pupil
mydriatic agents are contraindicated (medications which dilate the pupil i.e. tropicamide)

Question 7

pathophysiology o f age related macular degeneration

Answer 7

central visual impairment
results from deposition of drusen which damaged photoreceptor cells and causes rgadula visual loss

Question 8

insiduous onset peripheral vision loss

Answer 8

open angle glaucoma

Question 9

insiduous onset, blurred, dim vision with glare

Answer 9

cataract

Question 10

gene which is responsible for retinoblastoma and what is its normal function

Answer 10

Rb1 oncogene
prevents cell cycle progression past G1/S checkpoint