随机临床试验比较定制的角膜交叉连接:在高氧气中的epi-on和在室内空气中的epi-off用于角质
Sofie Elving1, Anneli Fredriksson, Jeannette Beckman Rehnman
1From the Department of Clinical Sciences/Ophthalmology, Umeå University, Umeå, Sweden .
Journal of cataract and refractive surgery
|March 11, 2024
概括
高氧定制的角膜交叉连接 (CXL) 提供更快的视觉恢复和比角膜切除 (epi-off) CXL更少的不适. 这两种方法都能在24个月内有效地稳定角膜.
科学领域:
- 眼科医生 眼科 眼科
- 角膜外科手术 角膜外科手术
- 视觉科学科学 视觉科学
背景情况:
- 角膜 (KC) 是一种渐进的角膜脱光症,导致视力受损.
- 角膜交叉连接 (CXL) 旨在通过加强角膜组织来阻止KC的进展.
- 定制的地形导向CXL为不规则的角膜形状提供了量身定制的治疗.
研究的目的:
- 为了比较定制的角膜交叉连接 (CXL) 在高氧和定制的CXL与角膜切除 (epi-off) 在室内空气中用于角质的临床结果.
- 在两个CXL协议之间评估视觉敏度,折射误差,角膜地形和患者舒适度.
主要方法:
- 这是一项前性,随机的,单面膜的,个体内研究,涉及32名双边渐进性KC的参与者.
- 双侧眼睛用定制的地形导向CXL进行治疗,其中一只眼睛随机分配到epi-on (高氧),另一只眼睛随机分配到epi-off (室内空气).
- 包括视敏度 (UDVA,CDVA),Kmax,低对比度视敏度 (LCVA),波面偏差和眼部不适等结果在24个月内进行了评估.
主要成果:
- 在24个月后,无论是开启的还是关闭的CXL都显示了UDVA,CDVA和Kmax的显著改善.
- 10%对比度的低对比度视力敏度 (LCVA) 在两组都得到改善,而2.5%对比度的LCVA仅在Epi-on组显著改善.
- 在治疗后的第一个星期内,经期治疗组报告的眼部不适明显减少,在两组中都没有发现任何不良事件.
结论:
- 高氧定制的Epi-onCXL是一种安全有效的替代品,用于治疗角质的Epi-offCXL.
- 与Epi-onCXL相比,Epi-onCXL提供了更快的视觉康复,并减少了早期的术后不适.
- 这两种CXL方法都有效地稳定了角质的进展,并在24个月内改善了视觉结果.
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