AIM: To investigate if carteolol 20g/L can prevent the increase of the intraocular pressure after the YAG laser peripheral iridectomy effectively.

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.