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Ophthalmic Images
October 11, 2018

Unilateral Triangular Cataract in an Adult

Author Affiliations
  • 1Goldschleger Eye Institute, Sheba Medical Center, Tel-Hashomer, Israel
  • 2Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
JAMA Ophthalmol. 2018;136(10):e182822. doi:10.1001/jamaophthalmol.2018.2822

A 68-year-old man with a history of a “weaker” right eye since childhood presented for a routine examination. His best-corrected visual acuity was Snellen 20/60 OD and 20/20 OS. Results of the examination revealed a central triangle-shaped cataract along the anterior Y-suture lines in his right eye that was shown best by retroillumination (Figure), with otherwise normal findings. He had no history of trauma, maternal infection, electrical injury, or family history of cataract. Bilateral triangular cataracts have previously been associated with prenatal methamphetamine exposure1 or genetic mutation.2 The monocular presentation in this patient suggests a possible unknown local mechanism.

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