扫描源光学连贯性断层扫描检测前腔室变化在激光外围 iridotomy 后的角度关闭的患者
Bruno L B Esporcatte1, Norton S Yanagimori1, Guilherme H Bufarah1
1Department of Ophthalmology and Visual Sciences, Escola Paulista de Medicina, Hospital São Paulo, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
Arquivos brasileiros de oftalmologia
|September 19, 2024
概括
激光外周性虹膜切除术有效地重塑前腔的参数,这是扫描源光学连贯性断层扫描所证明的. 这种成像技术量化了术后角度开口距离和虹膜曲率的变化.
科学领域:
- 眼科医生 眼科 眼科
- 医疗成像医学成像
- 人体解剖学 解剖学 解剖学
背景情况:
- 主角闭合和主角闭合光眼是以狭窄的前腔角为特征的条件.
- 激光外周 iridotomy (LPI) 是一个常见的治疗方法,以改善水性幽默的流动和降低眼内压力.
- 精确测量前腔参数对于评估LPI的有效性至关重要.
研究的目的:
- 为了比较激光外周 iridotomy (LPI) 之前和之后的前腔参数,使用扫描源前段光学连贯断层扫描 (AS-OCT).
- 量化评估LPI对特定角度和虹膜测量的影响.
主要方法:
- 对14名患有主角闭合症的患者和6名患有主角闭合症的患者的前性评估.
- 在LPI前后进行了视镜和AS-OCT (DRI OCT Triton®).
- 分析的AS-OCT参数包括视角开口距离,轨道眼 - 虹膜空间,轨道眼 - 虹膜角度,轨道眼 - 虹膜接触长度和虹膜曲率,使用状突起作为参考.
主要成果:
- 在61%的患者中,AS-OCT发现了显著的角度闭合.
- LPI导致虹膜曲率和状虹膜接触长度显著减少.
- 750微米的角度开口距离和虹膜曲率显示出明显的改善,即使在视镜没有检测到LPI后扩展的眼睛.
结论:
- 扫描源AS-OCT (DRI OCT Triton®) 提供了在LPI之后前腔室变化的定量评估.
- 这项研究表明AS-OCT在记录LPI对前腔的解剖学影响方面具有实用性.
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