This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors, Subject name: Ophthalmology
[{'content': 'A 5yrs old boy presented with leucocoria in right eye ball diagnosed to be retinoblastoma involving full eyeball, while other eye had 2-3 small lesion in the periphery. What will be the ideal management for this patient? \nSelect and explain. \nA. Enucleation of both eyes, B. Enucleation of right eye& conservative management of the other eye, C. Enucleation of right eye and focal therapy of the other eye, D. 6 cycles of chemotherapy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: *When vision cannot be saved in both the eye:- *Enucleation of more affected one. *Chemotherapy + local destruction for less affected eye. Ref: Yanoff & Ducker Ophthalmology 2nd/e p.1047.', 'role': 'assistant'}]