Glaucoma

Question 1

What is the main problem in glaucoma?

Answer 1

dysfunctional outflow of aqueous humour

Question 2

What is the modifiable risk factor in glaucoma?

Answer 2

raised IOP

Question 3

What are the signs of glaucoma?

Answer 3

1. increased cup to disc ratio
2. disc pallor
3. bayonetting of vessels
4. halo vision

Question 4

How do you measure IOP?

Answer 4

tonometry

Question 5

At what IOP are you concerned?

Answer 5

over 23 mmgHg

Question 6

Which 2 glaucoma drugs act on the ciliary body to reduce aqueous humour production?

Answer 6

beta blockers (timolol) and carbonic anhydrase inhibitors (dorzolamide)

Question 7

Who can’t take brimonidine (alpha2 agonist)

Answer 7

people taking MAOI/TCA

Question 8

Side effects of carbonic anhydrase inhibitor acetazolamide

Answer 8

peri-oral tingling, parasthesia, renal calculi

Question 9

What is alphagan?

Answer 9

brimonidine

Question 10

Surgery for glaucoma

Answer 10

trabeculectomy

Question 11

What is involved in a trabeculectomy?

Answer 11

incision of conjunctiva then sclerostomy

Question 12

Side effect of glaucoma surgery?

Answer 12

increased progression of cataract

Question 13

What is a side effect of brimonidine?

Answer 13

red eye

Question 14

What is side effect of latanoprost?

Answer 14

brown discoloration of the iris

Question 15

What is a side effect of pilocarpine?

Answer 15

blurred vision and night blindness