ABO Retina and Vitreous Disorders 5

Question 1

Why did the AREDS2 formulation replace beta-carotene with lutein and zeaxanthin?

Accepted Answer

Beta-carotene raised the risk of lung cancer in smokers

Answer

Beta-carotene was linked to higher lung cancer risk in current and former smokers, and lutein/zeaxanthin was a safe, effective substitute.

Question 2

Which imaging test is the gold standard for diagnosing polypoidal choroidal vasculopathy?

Accepted Answer

Indocyanine green angiography

Answer

ICGA shows the hyperfluorescent polyps and branching vascular network that define PCV.

Question 3

For hydroxychloroquine screening in an Asian patient, which visual field protocol is recommended in addition to 10-2 testing?

Accepted Answer

24-2 or 30-2 visual field

Answer

Asian patients often show pericentral toxicity outside the central 10 degrees, so wider-field testing is advised.

Question 4

Per the Branch Vein Occlusion Study, when is scatter laser photocoagulation indicated in BRVO?

Accepted Answer

Once retinal or disc neovascularization develops

Answer

BVOS supported scatter laser after neovascularization develops rather than prophylactically in nonperfused eyes.

Question 5

Per the Central Vein Occlusion Study, what is the recommended management for an ischemic CRVO without neovascularization?

Accepted Answer

Close follow-up with PRP once iris or angle neovascularization appears

Answer

CVOS found no significant benefit to prophylactic PRP and recommended prompt PRP when anterior segment neovascularization develops, with frequent gonioscopy.

ABO - American Board of Ophthalmology Practice Test

ABO - American Board of Ophthalmology Practice Test

ABO Retina and Vitreous Disorders 5