To report a case of uremic optic neuropathy occurring in a patient with chronic renal failure.

A 40-year-old male who was diagnosed with chronic renal failure and treated with peritoneal dialysis and hemodialysis for 17 years presented with blurred vision and a moving pain in his left eye for 2 days. The best corrected visual acuity (BCVA) was 0.2 in his left eye, and an inferior altitudinal visual field defect was noted on Humphrey perimetry. Fundus examination and optical coherence tomography showed optic disc swelling in his left eye; the right eye was unremarkable. These findings were compatible with a diagnosis of uremic optic neuropathy or anterior ischemic optic neuropathy of his left eye. After treatment of hemodialysis and intravenous high dose steroid pulse therapy, the BCVA in his left eye was 0.8. However, since he refused oral steroid maintenance therapy, his BCVA later decreased to 0.4. After treatment with subtenon triamcinolone injection, the BCVA in his left eye was 1.0 and showed a stable disease course.

When patient with chronic renal failure presents with acute decrease in visual acuity and visual field defect, optic neuropathies including uremic optic neuropathy should be considered and prompt hemodialysis and systemic steroid treatment should be done.