Posterior ischemic optic neuropathy.
3 patients (5 eyes) with posterior ischemic optic neuropathy (PION) are presented. PION is a distinct clinical entity, caused by ischemia of the posterior part of the optic nerve. These eyes presented with a visual acuity varying from normal to no light perception, optic nerve-related visual field defects, and no fundus abnormality (on ophthalmoscopy or fluorescein fundus angiography) at the onset of the disease and for about a month thereafter, but after about 5-6 weeks the optic disc developed atrophic changes. The pathogenesis, differential diagnosis and possible management of PION are discussed.
D000293:Adolescent; D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007511:Ischemia / Q000175:diagnosis* / Q000209:etiology; D008180:Lupus Erythematosus, Systemic / Q000150:complications; D008297:Male; D008875:Middle Aged; D009896:Optic Atrophy / Q000150:complications; D009900:Optic Nerve / Q000098:blood supply*; D009901:Optic Nerve Diseases / Q000175:diagnosis* / Q000209:etiology; D014792:Visual Acuity; D014794:Visual Fields