Fig. 2: Success rates at 3-, 6-, and 12-months comparing HI-IOP-group and MI-IOP-group, based on postoperative IOP levels (≤21, ≤18, ≤15 mmHg) (p > 0.05 for all).

CS complete success, IOP intraocular pressure, HI-IOP highly increased intraocular pressure, MI-IOP moderately increased intraocular pressure, QS qualified success, the number indicates the IOP limit of success.