Surgery

Question 1

What are the two situations when a conjunctival flap should NOT be used?

Answer 1

1. Active microbial keratitis 2. Corneal perforation

Question 2

Which suture is the most important in PK?

Answer 2

The SECOND.

Question 3

In PK, which sutures are preferred with vasculized, inflamed, thinned, and pediatric cases?

Answer 3

Interupted.

Question 4

How many forms of corneal transplant rejection are there?

Answer 4

FOUR

1. Epithelial 2. Subepithelial 3. Stromal (necrosis) 4. Endothelial (MOST COMMON)

Question 5

Which type of suture should be used for scleral fixated lenses?

Answer 5

9-0 prolene (nylon is not a permanent suture)

Question 6

When should ASA and plavix be stopped?

Answer 6

TEN days prior to surgery

Question 7

When should be ooumadin be stopped?

Answer 7

3-5 days prior to surgery

Question 8

Interupted sutures for PKP are preferred for what type of cases?

Answer 8

1. Children 2. Vascularization 3. Inflamed corneas

Question 9

In a patient who has had refractive sx what is the common mistake to make in calculating IOL power?

Answer 9

Overestimate corneal power causes under estimation of IOL power causing = hyperopic surprise.