The meeting _______ by the time I got there yesterday. [ ]

A. was on

B. has been on

C. had begun

D. has begun

患者女性，45岁，双眼视力下降伴头痛2周，不伴眼红眼痛，无全身病史及外伤史。双眼矫正视力0．4，双眼压11mmHg，眼前段未见异常，眼底检查，双眼玻璃体细胞+，视 * * 轻度水肿，边界不清，视盘充血，视网膜静脉稍扩张，视盘周围视网膜浅脱离，累及黄斑区。

为明确诊断，需要进一步的眼科检查（）

A.FFA

B.ICGA

C.OCT

D.视野

E.VEP