Coats Disease: An Overview

Coats disease is a rare unilateral idiopathic retinal vascular disorder of childhood characterised by abnormal retinal telangiectasia and progressive intraretinal and subretinal exudation. Coats disease may clinically mimic retinoblastoma and can progress to exudative retinal detachment, neovascular glaucoma, and phthisis bulbi. An understanding and recognition of Coats disease is essential for all trainee and aspiring ophthalmologists. This overview aims to provide a concise introduction to the aetiology, diagnosis, classification and management of Coats disease.