在结合白内障和角眼的眼睛中,以功能性方法选择IOL,并选择折射性透镜交换
Journal of refractive surgery (Thorofare, N.J. : 1995)
|April 9, 2024
概括
用球形眼镜和眼镜 (IOLs) 进行分阶段方法的眼镜手术改善了未经纠正的视力敏度. 这种方法优于单阶段的胸部内膜眼镜植入,可获得更好的视觉效果.
科学领域:
- 眼科医生 眼科 眼科
- 折射手术是一种折射手术.
- 角膜疾病 角膜疾病
背景情况:
- 由于角膜形不规则,眼镜 (IOL) 的精确功率计算存在挑战.
- 标准的白内障手术技术可能不会在患有白内障的患者中产生最佳的视觉结果.
研究的目的:
- 为了评估一个分阶段的方法的有效性,包括球形IOL植入,然后在角质眼中进行可选的托里克IOL交换.
- 改善白内障和角患者的未经纠正的视力敏度 (UDVA).
主要方法:
- 在85个眼中对白内障手术结果的回顾性分析.
- 眼睛根据IOL植入策略进行分类:分阶段的球体IOL,然后是体IOL交换 (组1),球体IOL与眼镜/隐形眼镜校正 (组2),球体IOL与隐形眼镜校正 (组3),以及单阶段的体IOL植入 (组4).
- 分析包括纠正和未纠正的距离视敏度 (CDVA,UDVA) 和角质计.
主要成果:
- 一个分阶段的托里克IOL交换导致明显更好的UDVA (0.15logMAR) 与最初的单阶段的托里克IOL植入 (0.24logMAR;P=.02) 相比.
- 所有接受托里克IOL更换的眼睛都实现了20/30或更好的CDVA,其中94%实现了20/40或更好的UDVA.
- 透镜更换后,手术后的平均明显圆柱体从3.39 D降至1.10 D.
结论:
- 在形眼睛中植入初始球形IOL允许基于明显折射的形IOL计算,这可能比形计更可靠.
- 相比于立即的胸腔IOL植入,分阶段的胸腔IOL交换提供了优越的UDVA.
- 这种分阶段的方法有助于避免在IOL植入后需要刚性隐形眼镜的情况.
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