This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lens, Subject name: Ophthalmology
[{'content': 'Surgery of choice for congenital cataract- \nSelect and explain. \nA. ECCE, B. ICCE, C. Needling, D. Discission', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Extracapsular cataract extraction (ECCE) with primary posterior capsulectomy and anterior vitrectomy is the procedure of choice ( limbal or pars plana approach). This is done by phacoemulsification. After cataractous lens extraction, the child is treated:- i) If<2 years old-Extended wear contact lenses. Ref: Yanoff & Ducker 3rd/e p.450-454. ii) If>2 years old-Posterior chamber IOL implantation.', 'role': 'assistant'}]