English

Abstract

AIM: To report a case of Central Retinal Artery Occlusion (CRAO) in young males in its initial manifestation as Primary Antiphospholipid Syndrome. METHODS: 32 year healthy male, with abrupt sudden painless loss of vision in right eye since 48 hours, with Grade 2 Relative afferent pupillary defect, visual acuity of hand movements in OD and 6/18 in OS. Fundoscopy disclosed signs compatible of central retinal artery occlusion confirmed with FFA. Carotid Doppler imaging and echocardiography was done to determine the source. RESULTS: Antiphospholipid antibody cofactor, beta2-glycoprotein 1 antibodies, IgM, was positive with titre of more than 94 un its/ml on two occasions, 12 weeks apart, with normal range being less than 20 units/ml for each isotope (IgG, IgM, or IgA).According to the 2006 revised Sapporo criteria Antiphospholipid syndrome was diagnosed. Thorough examination excluded other system involvement. Immunological studies excluded other systemic disorders. CONCLUSIONS: In literature, prevalence of CRAO is 0.85% for every 100000 and prevalence of Antiphospholipid Syndrome in patients showing a major retinal vascular obstruction is 5% - 33%. Antiphospholipid syndrome should be ruled out in every young patient who presents with Central retinal artery occlusion. Association must be considered, as Central retinal artery occlusion could be the initial manifestation of antiphospholipid syndrome with high risk of recurrence.