A man in his 40s presented with progressive right eye protrusion (Figure, A). He had no light perception OD and 20/100 best-corrected visual acuity OS. Hertel exophthalmometer results showed a 3.5-mm intereye difference. Both eyes were pseudophakic and had an enlarged and deeply excavated optic disc. Brain magnetic resonance imaging results demonstrated a 43.6-mm eyeball with staphyloma (Figure, B).While the reproducibility of the measurement likely is ±0.3 mm, this is longer than the range of recent case series.1
Hsia Y, Ho T. Posterior Staphyloma of Extreme Pathologic Myopia. JAMA Ophthalmol. 2020;138(5):e191663. doi:10.1001/jamaophthalmol.2019.1663
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