在正常张力玻璃眼中,逐渐减少周周毛细毛细血管密度和长期视野进展
De-Fu Chen1,2, Chenmin Wang1,2, Weihe Zhou1
1National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, China.
Acta ophthalmologica
|January 23, 2024
概括
在正常张力眼镜 (NTG) 中,较快的视野损失与周周毛细血管密度 (pcVD) 的更快降低有关. 这项研究强调了PCVD下降和NTG患者视力恶化之间的联系.
科学领域:
- 眼科医生 眼科 眼科
- 玻璃眼研究研究 玻璃眼研究
- 视网膜成像 视网膜成像
背景情况:
- 正常张力玻璃眼 (NTG) 是一种渐进的视神经病变,其特征是视野 (VF) 损伤.
- 周周毛细血管密度 (pcVD) 是视网膜微血管健康的关键指标.
- 了解微血管变化和VF损失之间的关系对于管理NTG至关重要.
研究的目的:
- 在正常张力玻璃眼 (NTG) 患者中,调查周周毛毛细血管密度 (pcVD) 减少率与视野缺陷 (VF) 的进展之间的关联.
主要方法:
- 一项前性队列研究,涉及110名参与者与NTG.
- 使用标准自动周边测量 (平均偏差 - MD) 评估视野缺陷.
- 周周毛细血管密度 (pcVD) 用光学连贯性断层扫描血管学测量.
- 线性混合效应模型分析了PCVD和VFMD随时间变化的变化.
主要成果:
- 30%的参与者表现出快速的视野进展 (MD斜率比-0.5dB/年更).
- 与稳定或缓慢进展的患者相比,VF进展的患者显示PCVD减少的速度明显更快 (-0.73%/年对 -0.56%/年,p=0.022).
- pcVD减少的速度与VF MD下降的速度正相关 (p=0.001).
结论:
- 在NTG中视野障碍的更快进展与周周毛囊毛细血管密度的更快速下降有关.
- 这一发现表明,在NTG.中,微血管恶化 (pcVD下降) 和功能视力丧失之间存在显著的相关性.
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