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在激光外周 iridotomy 后的主要角度闭合疾病中,透镜位置和稳定性的分析

Xinyu Wang¹, Yunxiao Wang¹, Shasha Xue¹

¹Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, China.

Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie

|November 17, 2025

概括

激光外围皮质切除术 (LPI) 在初级角闭症 (PACD) 患者中将透镜向后移动,改善了透镜的稳定性. 这种变化可能会影响眼内透镜功率计算,特别是在初级视角闭眼 (PACG).

科学领域:

眼科医生眼科眼科
前段外科手术前段外科手术
视光眼管理视光眼管理

背景情况:

主要角关闭性疾病 (PACD) 具有可以导致眼内压升高的解剖倾向的特征.
激光外周 iridotomy (LPI) 是一个常见的干预措施,以改善水性幽默的流动和降低眼内压力在PACD.
LPI对眼部生物力学的影响,特别是镜片的位置和稳定性,需要进行详细的研究.

研究的目的:

为了评估激光外周 iridotomy (LPI) 对晶状镜片的位置和稳定性的影响.
分析这些影响的不同阶段的初级角度闭合疾病 (PACD):疑似 (PACS),初级角度闭合 (PAC) 和初级角度闭合光眼 (PACG).
评估LPI后眼内镜 (IOL) 功率计算对眼内镜片 (IOL) 的潜在影响.

主要方法:

一项前性研究涉及164只眼睛,这些眼睛是接受LPI的PACD患者.
使用超声生物显微镜 (UBM) 和IOLMaster700®,对镜头位置 (LP,RLP,LAF) 和镜头稳定性 (ILA,ILCD差异) 的定量评估.
在PACS,PAC和PACG分组中比较了LPI前后的测量.

主要成果:

在PAC和PACG组中,LPI显著增加了镜头位置 (LP) 和相对镜头位置 (RLP),表明了后部镜头移位.
透镜稳定性,以减少虹膜透镜角度 (ILA) 差异来衡量,在所有PACD亚型中,在LPI后显著改善.
镜头轴长因子 (LAF) 和眼镜眼接触距离 (ILCD) 的差异在LPI后显示无显著变化.

结论:

在患有PACD的患者中,LPI诱导了晶状透镜的相对后部移位,并增强了透镜稳定性.
观察到的后镜片转移可能需要在术前眼内镜片 (IOL) 功率计算中进行调整,特别是在PACG中.
在LPI后改善的透镜稳定性表明了有利的生物力学结果,特别是在PACG队列中注意到.

关键词:

激光外周虹膜切除术是一种激光外周虹膜切除术.镜头位置镜头位置主要角关闭疾病主要角关闭疾病稳定的稳定性稳定的稳定性超声波生物显微镜研究

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