Figure 1.

Success rate of intraocular pressure (IOP) control after microhook trabeculotomy by survival curve analysis. For the survival curve analysis, the uncensored date was defined as the postoperative period of later than 90 days and the day when the IOP level exceeded 18 mmHg (a,c) or 15 mmHg (b,d), IOP reduction of less than 20% (a,b), or exceeding the baseline IOP (c,d) with antiglaucoma medication, additional glaucoma surgery (a–d), or loss of light perception (a–d); the cases other than those that were uncensored were regarded as censored cases at the final visit. The dotted lines indicate the ranges of the 95% confidence intervals of the survival analysis. Y, years.