Modern Glaucoma Surgery

Modern Glaucoma Surgery

COURSE EXAMINATION

1. Which of the following best describes the prevalence of glaucoma in the United States?

a. 5% of Americans have glaucoma.

b. 60 million Americans have glaucoma

c. There will be 3.4 million Americans with glaucoma by 2020.

d. 11 million Americans are blind from glaucoma.

2. Which of the following is not true regarding aqueous humor?

a. Aqueous is made by the ciliary processes of the ciliary body.

b. Aqueous drains from the eye exclusively through the trabecular meshwork.

c. IOP is determined by the balance of aqueous production and aqueous outflow.

d. Most glaucoma surgeries increase aqueous outflow.

3. Which of the following is not a reason for glaucoma surgery?

a. IOP is too high.

b. Visual field is getting worse.

c. Optic nerve is getting worse.

d. Patient wishes to see better.

4. Which of the following is not a full-thickness bypass in which aqueous is shunted to the

subconjunctival space?

a. Trabeculectomy

b. Tube-shunt

c. iStent

d. Ex-PRESS

5. Which of the following is an important step at the beginning of glaucoma surgery?

a. Anesthesia

b. Marking the surgical site

c. Sterilely prepping the surgical field

d. All of the above

6. Which of the following is an optional step in the trabeculectomy procedure?

a. Making a partial-thickness scleral flap

b. Use of antimetabolites such as 5-fluorouracil or mitomycin-C to prevent scarring

c. Sewing down the scleral flap

d. Making an incision in the conjunctiva

7. The Ex-PRESS device reduces the chances of surgical failure by which means?

a. Prevents the scleral flap from scarring to the scleral bed

b. Prevents the conjunctival from scarring to the sclera

c. Prevents the sclera from scarring to the cornea

d. Prevents the hole in the sclera from scarring shut

8. Which of the following is true regarding tube-shunts?

a. Common types include the Ahmed and the TrabecTome

b. Valved devices have no flow restrictor

c. They can cause diplopia

d. Valved devices have a higher risk for postoperative hypotony than non-valved devices