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ABSTRACT: STUDY DESIGN: Retrospective study. MATERIAL AND METHODS: 49 patients of hHyc referred from various departments for ophthalmic opinion are included in the study. All cases were evaluated for anterior segment and posterior segment presentations. Field test was done for cases who had optic nerve involvement and cerebral infarcts. RESULTS: out 49 cases 25 cases had significant ocular findings mainly vascular involvements and sequlaes, like Retinal branch vein occlusion(BRVO), papillodema, visual field defects, Non arteritic anterior ischemic optic neuropathy (NA-AION) and optic disc pallor and 49%(24 patients) had no ocular findings. All cases were of moderate to intermediate hHyc and could undergo all the tests. One case with severe brain ischemia evaluated in medical casualty died. CONCLUSION: hHyc can present with varied vascular and ischemic ocular findings. Study shows the need for hHyc evaluations in all cases ocular ischemic and vascular catastrophes.