This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
[{'content': 'Treatment of choice for congenital cataract is – \nSelect and explain. \nA. Pharmacotherapy, B. Combined cataract surgery and Goniotomy, C. Cataract surgery with IOL implant and primary posterior capsulotomy, D. Pars plana lensectomy with no IOL implant', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Extracapsular cataract extraction (ECCE) with primary posterior capsulectomy and anterior vitrectomy is the procedure of choice (via limbal or pars plana approach). This is done by phacoemulsification.\nAfter cataractous lens extraction, the child is treated:-\n\ni)\xa0If < 2 years old → Extended wear contact lenses.\nii)\xa0If > 2 years old → Posterior chamber IOL implantation.', 'role': 'assistant'}]