post cardiac surgery ophthalmic complications are uncommon, and sudden visual loss is one of the most important ophthalmic problems in these patients. we report a 54-year-old woman that suffered transient sudden bilateral visual loss seven days after orthotopic heart transplantation. in ophthalmologic examination positive findings were bilateral normal size pupils without direct and indirect pu...

a 41-year-old man was referred with a complaint of visual loss in his left eye and his best corrected visual acuity was 20/80. slit lamp examination showed arborizing conjunctival vessels and dry eye. fundus examination and fluorescein angiography revealed a non-ischemic central retinal vein occlusion. cardiovascular, rheumatologic, and hematologic work up showed no abnormal findings. an ascert...

purpose: to evaluate the preschool vision screening program coverage and to assess its validity indices including specificity, negative predictive value (npv), sensitivity and positive predictive value (ppv) and the frequency of treatment for visual impairment. methods: a sample of 906 six-year-old children signed up for primary school registration in the shahrood district (semnan, iran) were r...