The following are multiple choice questions (with answers) about medical knowledge.   **Question:** To evaluate post-operative vision effects after cataract extraction surgery under PCB, which of the following is used?   (A) Active surveillance   (B) Sentinel surveillance   (C) Passive surveillance   (D) Routine checkup of all operated cases
['(D) Routine checkup of all operated cases <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Active surveillance \n (B) Sentinel surveillance \n (C) Passive surveillance \n (D) Routine checkup of all operated cases <> possible answers', '  To evaluate post-operative vision effects after cataract extraction surgery under PCB, which of the following is used? <> context@']