Neuropatia óptica isquêmica anterior não arterítica ipsilateral: relato de caso e discussão dos mecanismos fisiopatológicos

We present the case of a 45-year-old male patient with sudden painless visual loss in left eye (OS), diagnosed as nonarteritic anterior ischemic optic neuropathy (NAION). Three months later, new superior scotoma, accompanied by an inferior disc edema, characterized recurrent episode NAION OS. Ambulatory blood pressure monitoring disclosed arterial hypertension, no drop during sleep. Optical Coherence Tomography showed drusen. Ipsilateral recurrence is rare event. believe insufficient relief “crowding” effect predisposed discs after sectoral important risk factor for ipsilateral recurrences.