Table 2. Preoperative and postoperative characteristics of the Ahmed glaucoma valve group.
VA = visual acuity; IOP = intraocular pressure; UM = unmeasurable; HM = hand motion; NLP = no light perception; CF = counting finger.
VA = visual acuity; IOP = intraocular pressure; UM = unmeasurable; HM = hand motion; NLP = no light perception; CF = counting finger.