<prompt> A 3 year old male presents with a sudden onset visual loss in left eye. Ophthalmological examination reveals strabismus and white pupillary reflex. Fundus finding is shown below.What is your diagnosis?RetinoblastomaSickle cell retinopathyToxoplasmosisCoats disease  <response>: The clinical history along with fundus finding of telangiectatic vessels and hard exudates points towards a diagnosis of Coats disease. Coats diseaseIdiopathic non-hereditary,retinal telangiectasia.Age group-1st decade of life average 5 yearsClinical features-Unilateral visual loss,strabismus,leukokoria.It is characterised by retinal angiomas and massive subretinal exudation from the angiomas.This exudation produces retinal detachment.Cataract and angle closure glaucoma may also occur in late stages. 