Table 2. Changes in IOP, VA, and anti-glaucoma medication before and after AGV implantation.

Time	IOP (mm Hg)	Eye drops	VA	No. of eyes	No. of eyes with drops	aP	bP	cP
Preop. baseline	30.8±6.8	3.1±0.6	0.72±0.49	46	46
Postop. 1wk	9.1±3.2	0.1±0.1	0.68±0.53	46	1	<0.01	<0.01	NS
Postop. 1mo	9.9±4.1	0.5±0.3	0.67±0.46	46	8	<0.01	<0.01	NS
Postop. 3mo	10.1±4.2	0.9±0.4	0.71±0.51	46	12	<0.01	<0.01	NS
Postop. 6mo	10.9±3.7	0.9±0.2	0.73±0.56	46	10	<0.01	<0.01	NS
Postop. 12mo	12.9±4.6	1.2±0.5	0.78±0.69	44	14	<0.01	<0.01	NS
Postop. 24mo	13.8±3.9	1.3±0.4	0.69±0.56	37	18	<0.01	<0.01	NS
Postop. 36mo	13.2±4.6	1.1±0.3	0.71±0.45	33	17	<0.01	<0.01	NS
Postop. 48mo	12.3±3.5	1.3±0.3	0.68±0.48	33	19	<0.01	<0.01	NS
Postop. 60mo	13.1±3.7	1.2±0.5	0.63±0.54	33	19	<0.01	<0.01	NS

^aIOP after operation vs baseline; ^bEye drops after operation vs baseline; ^cVA after operation vs baseline. NS: No significant difference.