<prompt> A 7-year old male child presents with normal vision 66 in the right eye and hand movement perception close to the face in the left eye. On fundoscopy, his right eye was normal and left eye showed retinal detachment, subretinal yellowish exudates and telangiectatic vessels. The most likely diagnosis is:Coats diseaseSympathetic ophthalmitisFamilial exudative vitreoretinopathyRetinopathy of prematurity  <response>: Ans. a. Coats disease 