与双边RDH12变体相关的视网膜退化:儿童患者视网膜结构和视觉功能的纵向评估
Tomas S Aleman1,2, Alejandro J Roman1, Katherine E Uyhazi1
1Scheie Eye Institute, Department of Ophthalmology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States.
Investigative ophthalmology & visual science
|December 18, 2024
概括
这项研究追踪了RDH12相关的Leber先天性黄斑症 (RDH12-LCA) 的儿科患者的光受体疾病. 治疗应针对状,以减缓进展,以及周状棒,以改善夜视.
科学领域:
- 眼科医生 眼科 眼科
- 遗传学 是一个遗传学.
- 视网膜疾病 视网膜疾病
背景情况:
- 勒伯先天性黄斑症 (LCA) 是一种严重的遗传性视网膜变症.
- RDH12-LCA是一种由RDH12基因突变引起的特定亚型.
- 了解自然史对于开发有效的治疗方法至关重要.
研究的目的:
- 为了确定儿科RDH12-LCA患者光受体退化的自然史.
- 为了估计临床试验设计的疾病进展.
- 为了将光受体损失与视觉功能缺陷相关联.
主要方法:
- 包括46名来自36个家庭的RDH12-LCA患者,主要是儿科患者.
- 利用全面的眼科检查和先进的成像 (例如,自适应光学扫描激光眼镜镜).
- 在各种照明条件下使用周边测量和全场刺激测试 (FST) 评估视觉功能.
主要成果:
- 观察到严重的早期视网膜退化 (EORD),视敏度的进展为0.04 logMAR/年.
- 状的敏感性损失与光受体损失相关,尽管保留了一个小的状区域.
- 周 papillary 棒敏感度低于预期,表明改善的潜力;棒敏感度的损失超过了圆损失.
结论:
- 治疗策略应针对状,以减缓RDH12-LCA的疾病进展.
- 对周杆光受体的治疗可以增强夜视.
- 儿科FST需要仔细考虑影响值的年龄相关的认知成熟.
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