Melanocytoma of the optic disc - a case report.

INTRODUCTION Melanocytoma of the optic disc is a benign lesion. OBJECTIVE To describe a case of optic disc melanocytoma CASE A 48-year old lady presented with gradual visual impairment associated with a floater. The right eye fundus examination showed a mass uniformly dark black in colour on the optic disc. The mass completely obscured the fluorescence on fluorescein angiography and was thus differentiated from malignant melanoma. CONCLUSION Optic disc melanocytoma can present with visual impairment and a floater. Fluorescein angiography can be useful to differentiate between malignant melanoma and melanocytoma.