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Shinji Kakihara¹, Anna Busza¹, Taffeta Chingning Yamaguchi²

¹Department of Ophthalmology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States.

Investigative ophthalmology & visual science

|June 2, 2025

概括

糖尿病中视网膜缺血的位置会对视力产生不同的影响. 后部缺血主要影响低亮度视力敏度,而斑点和后部缺血减少最佳校正视力敏度.

科学领域:

眼科医生眼科眼科
糖尿病学糖尿病学
医疗成像医学成像

背景情况:

糖尿病视网膜病变 (DR) 是导致视力丧失的主要原因.
视网膜非 perfusion 是DR的一个关键特征,但其对视觉功能的地形影响尚未完全理解.

研究的目的:

调查视网膜非输液的位置如何影响糖尿病患者的视力敏度.
区分后部和外周缺血对低亮度视敏度 (LLVA) 和最佳校正视敏度 (BCVA) 的影响.

主要方法:

从126名DR患者的181只眼睛进行横截面观察研究.
使用早期治疗糖尿病视网膜病变研究 (ETDRS) 协议测量LLVA和BCVA.
视网膜缺血量化使用超宽场光素血管造影 (UWF-FA) 和光学连贯性断层扫描血管造影 (OCTA).

主要成果:

增加DR严重程度与减少的BCVA和LLVA相关.
在调整后,后侧缺血显著影响了LLVA (P=0.046) 和BCVA (P=0.009).
斑点缺血症,特别是深毛细管中的几何 perfusion 缺陷 (GPD-DCP),也显著影响了BCVA (P=0.049).

结论:

视网膜缺血的地形位置对糖尿病患者的视觉功能有不同的影响.
后面缺血是减少LLVA和BCVA的一个重要因素.
评估斑点以外的缺血对于了解糖尿病视力缺陷至关重要.

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