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Homonymous central quadrantanopia caused by an extrastriate (v2/v3) infarction: a case report
Shu-Fang Lin1, Yu-Ting Kuo, Fang-Ling Chang
1Department of Ophthalmology, Buddhist Tzu-Chi General Hospital, Hualien, Taiwan.
Abstract:
A 66-year-old Taiwanese aboriginal male had complained of right-side blurred vision for 2 months, especially when reading. He had a 10-year history of hypertension and cardiovascular disease. His best-corrected visual acuity was 20/25 in each eye. Ophthalmoscopy revealed asymmetrical cupping, but a normal disc. Humphrey perimetry showed an upper homonymous paracentral quadrantanopic defect. Brain magnetic resonance imaging showed an infarction in the left lower calcarine area over the extrastriate (V2/V3) cortical area and a narrowing of the left middle and posterior cerebral arteries due to severe arteriosclerosis.
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