system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Most common eye ball tumour is
assistant
The correct answer is  Ans. is 'a' ie Retinoblastoma Retinoblastoma is the most common primary malignant intraocular tumour of childhood and the second most common of all age groups.MC primary malignant intraocular tumour of adults - Choroid melanoma*