Prospective Study of Glaucoma Surgery(Kyoto University Glaucoma Surgery Study) - Glaucoma Surgery Study

Mean preoperative IOPs were 22.6+-7.4 mmHg in the TAT group and 24.3+-6.6 mmHg in the TLO group. Mean postoperative IOPs in the TAT group were 15.8 +- 3.6 mmHg at 12-months, and 15.7+-5.5 mmHg at 36-months, and 16.0+-3.4 mmHg at 12 months and 15.2+-3.8 mmHg at 36 months in the TLO group. Postoperatively, success rates at 36-months were significantly higher in the TLO group in some criteria; IOP reductions at 1- and 2- years were significantly higher in the TLO group; these differences were not significant after adjustment with other potential prognostic factors. The number of glaucoma medications were significantly higher in the TAT group, at 2-years (P < 0.001) but not at 3-years (P = 0.22). Surgical successes following TLO and TAT are not significantly different 3 years postoperatively after adjustment of potential prognostic factors.