NBEO NBEO Posterior Segment & Retinal Disease

Question 1

Which retinal layer contains the photoreceptor cell bodies?

Accepted Answer

Outer nuclear layer

Answer

The outer nuclear layer contains the nuclei and cell bodies of both rod and cone photoreceptors.

Question 2

A patient presents with a 'curtain coming down' vision loss, flashes of light, and floaters. What is the most likely diagnosis?

Accepted Answer

Rhegmatogenous retinal detachment

Answer

Rhegmatogenous retinal detachment classically presents with photopsia, floaters, and a scotoma described as a curtain moving across vision.

Question 3

Which finding on fundus examination is MOST characteristic of nonproliferative diabetic retinopathy (NPDR)?

Accepted Answer

Microaneurysms

Answer

Microaneurysms are the earliest and most characteristic sign of NPDR, representing focal outpouchings of retinal capillary walls.

Question 4

A flame-shaped hemorrhage in the nerve fiber layer is most commonly associated with which condition?

Accepted Answer

Hypertensive retinopathy

Answer

Hypertensive retinopathy produces flame-shaped (splinter) hemorrhages because elevated blood pressure ruptures nerve fiber layer vessels that spread along axonal bundles.

Question 5

Which test is considered the gold standard for diagnosing choroidal neovascularization (CNV) in wet AMD?

Accepted Answer

Fluorescein angiography

Answer

Fluorescein angiography remains the gold standard for detecting and classifying CNV, showing leakage patterns that distinguish classic from occult membranes.

NBEO - National Board of Examiners in Optometry Practice Test

NBEO - National Board of Examiners in Optometry Practice Test

NBEO NBEO Posterior Segment & Retinal Disease