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
Cupuliform cataract stas from- 
Select and explain. 
A. Posterior subcapsular region, B. Anterior capsule, C. Near nucleus, D. Annularly
A: Posterior subcapsular region
Answer: A: Posterior subcapsular region 
Explanation: Cupuliform cataract is posterior subcapsular cataract and gradually extends outwards. Ref: Parson's 22nd/e p.267, 616& 21st/e p.258, 260; Khurana 7th/e p.194 & 4th/e p.177.