DR. KIRTI CHHABRA

DR. DEVENDRA KUMAR SHAKYA, DR. RASHMI KUJUR, DR. DIVYA RANA

Abstract

A 36 years old apparently healthy male presented with complain of acute painless blurring of peripheral vision in RE since 2months.BCVA was 6/36 in RE and 6/6 in the LE. RAPD was present on swinging flash light test in RE.Dilated fundus examination showed disc pallor in RE and a C:D ratio of 0.1:1 in LE.Visual field examination was suggestive of inferior altitudinal defect in the RE.MRI Brain and Orbit revealed no abnormality. Serum homocysteine levels were high. Serum cholesterol levels were within normal limits .VEP revealed a normal study.Diagnosis of RE Non arteritic AION was made. The patient was started on a combination of Syndopa-Carbidopa,IV Methyl prednisolone,Aspirin.The pathogenesis of NAAION may be due to ischemia to the optic nerve head from insufficient perfusion of the short posterior ciliary arteries.The most important structural risk factor is a small and crowded disc.Younger patients with AION have better visual outcomes but a higher risk of fellow eye involvement.