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
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: Answer- A. Posterior subcapsular regionCupulifurm senile coical cataract (Posterior subcapsular) : Here a saucer shaped opacity develops just below the capsule. Usually in the central pa of posterior coex (posterior subcapsular cataract), which gradually extend outwards.Cupuliform cataract lies right in the pathway ofthe axial rays and thus causes an early loss of visual acuity.