硬膜透镜诱导的眼睛的角膜短期变化与Pellucid边缘退行症
Ronit Dutta1, Geetha Iyer2, Bhaskar Srinivasan2
1Department of Contact Lens, Sankara Nethralaya, Unit of Medical Research Foundation, Chennai, India.
概括
皮质边缘退行症 (PMD) 眼睛中短时间的状镜片 (SL) 磨损导致了显著的角膜曲率变化和轻微的角膜胀. 这些变化可能会影响疾病进展的准确测量.
科学领域:
- 眼科医生 眼科 眼科
- 角膜病的研究研究.
- 视光学测量 视光学测量 视光学测量
背景情况:
- 皮质边缘退化 (PMD) 是一种渐进的角膜稀薄障碍.
- 膜透镜 (SL) 用于在PMD等疾病中管理不规则的纹.
- 了解SL对角膜形态的直接影响对于患者管理至关重要.
研究的目的:
- 评估硬膜镜片 (SL) 磨损对皮质边缘退行症 (PMD) 患者角膜曲和水的短期影响.
主要方法:
- 用Schiempflug成像测量角膜前后曲以及角膜厚度.
- 在基线和6小时SL磨损后,在14个PMD眼睛中进行了测量.
- 分析包括各种角膜直径和午线.
主要成果:
- 在特定的角膜象限和直径中观察到前角膜曲率的显著平坦化和后角膜曲率的化.
- 在SL磨损6小时后,观察到角膜厚度的统计显著增加,表明角膜胀 (2.10%4.00%).
- 没有发现角膜和初始/最终液体库厚度,曲率变化或透镜厚度之间有显著的相关性.
结论:
- 短时间佩戴硬膜透镜会在PMD眼睛中引起临床上可接受的角膜胀.
- 临床上显著的角膜曲率变化 (前方平坦化,后方化) 发生在SL磨损.
- 眼科医生应在佩戴SL的PMD患者测量角膜参数时谨慎行事,以避免误解疾病进展.
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