在活体中,宏微神经血管映射和视觉场对应在非关节性前部缺血光学神经病变中
Shu Yang1,2, Dazhuang Ren1, Chang Li1
1Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin Medical University, Tianjin, China.
Ophthalmology and therapy
|December 25, 2025
概括
这项研究揭示了通过跟踪神经血管变化,非动脉炎前部缺血性视觉神经病变 (NAION) 如何进展. 急性NAION涉及胀和血管密度增加,而慢性NAION显示稀薄和输液减少,影响视觉功能.
科学领域:
- 眼科医生 眼科 眼科
- 神经科学是一个神经科学.
- 医疗成像医学成像
背景情况:
- 非动脉炎前侧缺血视神经病变 (NAION) 是导致视力丧失的主要原因.
- 了解NAION中神经血管变化对于诊断和治疗至关重要.
- 目前的成像技术缺乏一个全面的框架来分阶段NAION.
研究的目的:
- 为NAION建立一个体内神经血管分期框架.
- 整合广场扫描源光学连贯性断层扫描血管学 (SS-OCTA) 和自适应光学扫描激光眼镜学 (AOSLO).
- 精确地绘制与神经血管变化相关的视野 (VF) 缺陷.
主要方法:
- 对22个急性NAION眼,27个慢性NAION眼和20个健康对照进行前性研究.
- SS-OCTA量化了神经纤维层厚度和血管密度 (VD).
- AOSLO评估了轴突分级和光受体完整性;多变量线性回归确定了视觉功能的预测因素.
主要成果:
- 急性NAION显示RNFL胀,血管扩张,并增加部/中间毛细血管 (ICP) VD.
- 慢性NAION表现出轴突细化和鼻毛细血管衰减.
- 深毛细管 (DCP) VD预测了急性视觉功能;黄斑质细胞厚度和光盘 perfusion 预测了慢性功能.
结论:
- 广场SS-OCTA和AOSLO有效地进行NAION的神经血管级联.
- 急性 NAION: DCP VD 是视力损伤的生物标志物,与轴突胀和高反射点状焦点 (HDF) 相关.
- 慢性NAION:视觉结果取决于神经轴突损失和毛细血管衰减.
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