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视网膜神经纤维层和最小边缘宽度变化率之间的时间关系在青光眼中发生变化

Bethany E Higgins¹, Hongli Yang¹, Stuart K Gardiner¹

¹Devers Eye Institute, Legacy Health, Portland, OR, USA.

Translational vision science & technology

|April 5, 2024

概括

在青光眼患者中,最小边缘宽度 (MRW) 和视网膜神经纤维层厚度 (RNFLT) 同时发生变化. 在这些光学连贯性断层扫描 (OCT) 测量之间没有发现显著的时间滞后,这表明同时进展.

科学领域:

眼科医生眼科眼科
医疗成像医学成像
玻璃眼研究研究玻璃眼研究

背景情况:

玻璃眼是一种渐进的视神经病变,其特点是视力丧失.
光学连贯断层扫描 (OCT) 能够对视网膜结构进行定量评估.
最小边缘宽度 (MRW) 和视网膜神经纤维层厚度 (RNFLT) 是OCT衍生的关键生物标志物.

研究的目的:

调查来自海外的MRW和RNFLT变化率之间的关联.
为了确定MRW的变化是否可以预测RNFLT在青光眼患者的变化.

主要方法:

利用了P3研究中278名参与者的568只眼睛的数据.
采用结构方程模型 (SEM) 来评估MRW和RNFLT变化率之间的并发和滞后关联.
使用RMSEA,TLI和CFI进行评估的模型合适性.

主要成果:

没有时间延迟的模型与时间延迟的模型相比,更好地适应了数据.
SEM揭示了MRW和RNFLT的变化率是由它们自己的先前率和另一参数的同时变化预测的.
在MRW和RNFLT进展之间没有发现临床显著的时间滞后.

结论:

在眼患者中,MRW和RNFLT表现出同时发生的变化.
这两个OCT参数的进展同时发生,没有明显的时间延迟.
由于眼内压力变化率较低和眼内压力敏感度较低,RNFLT可能是更好地用于早期青光眼的评估.

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