<prompt> A 7 year old presents with left exotropia; right eye has 66 vision with normal fundus. Left eye has only close hand movements with subretinal yellow exudates and retinal detachment and telegiectatic vessels. Diagnosis is:Sympathetic ophthalmiaCoats diseaseROPFamilial exudative vitreous retinopathy FEVR  <response>: Ans. b Coats diseaseRef: Kanski 7e, p. 582 Unilateral loss of vision with squint, exudates RD points towards Coats diseaseFamilial exudative vitreoretinopathy FEVR Usually a positive family AD, XLR Bilateral but may be asymmetrical involved Unlike ROP not associated with LBW or prematurity Peripheral vascular telangiectasias Fibrovascular proliferation with tractional retinal detachment Massive subretinal exudates May present with leukocoria squint 