<prompt> Not true about retinoblastoma ?Bilateral in 20-30Affects age group 1-5 yearsMore common in malesLeukocoria is earliest symptom  <response>: Ans. is c More common in males Retinoblastoma is the most common intraocular tumor in children. The tumor is confined to infancy and very young children 1-2 years. There is no sex predisposition. Retinoblastoma is unilateral in 70-75 of cases and bilateral in 25-30 of cases. 