Risk of adverse effects with latanoprost and timolol.

* Discomfort include: eye discomfort, foreign body sensation, eye irritation. **Cardiac disorder include: palpitation, cardiac arrhythmia. = test for subgroup differences. All pooling was undertaken using fixed effect model as no heterogeneity was detected by Q test.不适症状包括：眼部不适、异物感、眼部刺激征。 心脏病症包括：心悸、心律失常。 （=）用于亚组差异检验。 由于Q检验（Q test）未检测到异质性（heterogeneity），故所有合并分析均采用固定效应模型（fixed effect model）。