摘要
目的应用频域眼前段光学相干断层扫描(OCT)分析周边虹膜切除术前后前房角的变化。方法原发性前房角关闭者32例(40只眼)行周边虹膜切除术,术前、术后2d、2个月使用频域眼前段OCT进行前房角测量,比较500μm/750μm前房角角度(ACA500/ACA750)和500μm/750μm前房角开放距离(AOD500/AOD750)等指标。结果各指标在术前、术后差异有统计学意义,术后2d、2个月相应指标差异无统计学意义。结论原发性前房角关闭行周边虹膜切除术后前房角增宽,可缓解瞳孔阻滞,预防前房角进一步关闭,频域眼前段OCT可进行术前术后的非接触检查,实现前房的生物统计学测量。
Objective To evaluate the change of the anterior chamber angle before and after iridec- tomy by spectral domain-anterior segment optical coherence tomography( SD-AS OCT). Methods The clin- ical trial was carried out in 40 eyes of 32 eases with primary angle closure (PAC). 500μm/750μm anterior chamber angle ( ACA500/ACA750 ) and 500μm/750μm angle opening distance ( AOD500/AOD750 ) were imaged with SD-AS OCT before and after irideetomy. Results There were statistical significant differences between preoperation and post-operation in ACA500/ACA750 and AOD500/AOD750. No significant differ- ences of above indexes were found between 2 days and 2 months after surgery. Conclusion The anterior chamber angle becomes wider in PAC patient after iridectomy. This improvement can relieve pupil block and prevent further chamber angle closure. SD-AS OCT can be used to carry out a noncontact biometrical meas- urement of anterior chamber before and after surgery.
出处
《中华眼外伤职业眼病杂志》
2014年第1期23-26,共4页
Chinese Journal of Ocular Trauma and Occupational Eye Disease
关键词
光学相干断层扫描
频域
眼前段
周边虹膜切除术
前房角
Optical coherence tomography, spectral domain, anterior segment
Iridectomy
Angle,anterior chamber