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Ophthalmology · Retina: macular hole
Sample itemAn elderly woman has central distortion and a Watzke-Allen test showing a break in the slit beam. What is the diagnosis?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Full-thickness macular hole
A broken or narrowed slit beam when projected across the fovea suggests a full-thickness hole. Vitrectomy with internal limiting membrane peeling and gas tamponade is the treatment.
Option by option
A. Central serous chorioretinopathy
CSC gives serous elevation without a break.
B. Epiretinal membrane
ERM gives a wavy slit beam.
C. Vitreous haemorrhage
Vitreous haemorrhage clouds the view.
D. Full-thickness macular hole (correct)
Correct. A positive Watzke-Allen test supports a macular hole.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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