Ocular Ischemic Syndrome Associated with Primary Hyperparathyroidism

Aim: To present a case of bilateral ocular ischemic syndrome associated with severe carotid artery occlusive disease and to discuss any possible etiological factors, including parathyroid adenoma. Case Presentation: We report a rare and unusual case of bilateral ocular ischemic syndrome, secondary to internal carotid artery atherosclerosis, occurring as a result of primary hyperparathyroidism. Discussion: A significant decrease in the visual acuity may be an early sign of PH. Considering calcium homeostasis in the eye is useful in establishing the right diagnosis of PH. Conclusion: To our knowledge, this is the first report of bilateral ocular ischemic syndrome associated with primary hyperparathyroidism.