应用Pentacam评价激光周边虹膜切除术前后前房形态参数的改变

目的：通过比较Pentacam测量的可疑房角关闭患者行激光周边虹膜切除术前后各项参数，探讨评价前房形态改变的敏感参数。
　　方法：诊断为可疑房角关闭并接受激光周边虹膜切除术治疗的患者33例60眼。患者术前及术后1 d行Pentacam检查，观察前房各项参数在激光前后的变化，进行配对 t检验。
　　结果：与术前相比较，中央前房深度差异无统计学意义，周边前房深度明显加深，差异有统计学意义；前房容积明显增加，差异有统计学意义。前房夹角变宽，从治疗前的(22.26°±5.18°)增加为治疗后的(26.42°±5.20°)，差异有统计学意义。
　　结论：激光周边虹膜切除术可以显著增加可疑房角关闭患眼的周边前房深度和前房容积，周边前房深度和前房容积可作为评价前房形态改变的敏感参数。

Evaluation of the change of anterior chamber parameters before and after laser peripheral iridectomy in primary angle-closure suspetive with Pentacam anterior segment analysis system

AIM:To investigate the sensitive parameters of the anterior chamber changes with Pentacam anterior segment analysis system before and after laser peripheral iridectomy(LPI)in primary angle-closure suspetive(PACS).

METHODS: Sixty eyes of 33 PACS patients were enrolled in this study. Pentacam examination was performed before and 1d after LPI to measure the central anterior chamber depth(CACD), the peripheral anterior chamber depth(PACD), the anterior chamber volume(ACV)and the peripheral anterior chamber angle(ACA). Statistical analysis used paired t test.

RESULTS: There was no statistical significance on the changes of ACD. PACD and ACV increased significantly between before and 1d after LPI. ACA was widened from(22.26°±5.18°)to(26.42°±5.20°), which were increased significantly between before and 1d after LPI.

CONCLUSION: LPI can deepen the PACD and increase the ACV in PACS. PACD and ACV are the sensitive parameters of the anterior chamber changes with Pentacam anterior segment analysis system.