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Ophthalmologist, Trabzon Training and Research Hospital, Ophthalmology Department, Trabzon, Türkiye DOI : 10.37845/ret.vit.2022.31.64 The present research reports an unusual case of a 69-year old man affected by unilateral non-arteritic anterior ischemic optic neuropathy (NA-AION ) with vitreous hemorrhage. The patient visited with a complaint of sudden painless vision loss in the right eye for five days. His best- corrected visual acuity was 1/20 for the right eye. Assessment of the fundus revealed mild or moderate vitreous hemorrhage with an obscured view of the posterior pole in the right eye. Visual acuity improved to 4/20 in the right eye eight days later. Fundus examination showed marked disc swelling and peripapillary flame-shaped hemorrhage in the right eye. Optical coherence tomography (OCT) demonstrated optic nerve edema and subretinal fluid extending to the macula. The patient was diagnosed with presumed NA-AION with vitreous hemorrhage in the right eye. Furthermore, he had a spontaneous improvement in visual acuity without any treatment. This is the first-ever case report describing a vitreous hemorrhage in a patient with NA-AION. Keywords: non-arteritic anterior ischemic neuropathy, optic nerve edema, vitreous hemorrhage, optical coherence tomography. Keywords : Non-arteritic anterior ischemic neuropathy, Optic nerve edema, Vitreous hemorrhage, Optical coherence tomography