方法：按相同的总能量进行匹配两组解剖学窄房角，YAG激光周边虹膜切除术患者64眼，其中一组术前2～3h曾滴用20g/L卡替洛尔滴眼液。记录术前、术后60min眼压。

结果：YAG激光周边虹膜切除术后，两组中发生眼压升高眼数、眼压变化程度均无显著差异。

结论：卡替洛尔滴眼液20g/L不能防止YAG激光周边虹膜切除术后眼压升高。

METHODS: Being matched by the same total power in the procedure, we got 2 groups from 64 narrow angles cases undergone YAG laser peripheral iridectomy. The cases in experimental group had been used carteolol eye drops once 120-180 minutes before the procedure. The intraocular pressure before the procedure and 60 minutes after the procedure was noted on each case.

RESULTS: There was no significant difference on the numbers of which intraocular pressure increasing lower than 5mmHg or higher than 5mmHg in two groups. And there was no significant difference on the numerical value of the intraocular pressure alteration after the procedure in two groups.

CONCLUSION: Carteolol eye drops 20g/L cannot prevent the increase of the intraocular pressure after the YAG laser peripheral iridectomy effectively.