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在正常张力玻璃眼不同阶段评估血管和结构性半网膜不对称性,使用光学一致性断层扫描
Xiaonan Lu1,2, De-Fu Chen1,2, Chenmin Wang1,2
1National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, China.
Journal of glaucoma
|March 25, 2025
概括
正常紧张性玻璃眼 (NTG) 中的脑脊膜不对称性显示出疾病各个阶段的明确趋势,对于诊断和分阶段非常有用,特别是早期与预周度阶段的区别. 下半球通常在NTG患者中表现出更严重的结构损伤.
科学领域:
- 眼科医生 眼科 眼科
- 玻璃眼研究研究 玻璃眼研究
- 医疗成像医学成像
背景情况:
- 正常张力玻璃眼 (NTG) 是一种渐进的视神经病变,其特点是视野损失,而眼内压力没有升高.
- 评估半网上腺不对称可能为NTG病变发生和进展提供新的见解.
- 目前的分期方法可能会从额外的客观参数中受益.
研究的目的:
- 在NTG的各个阶段调查周周毛细血管密度 (pcVD),黄斑血管密度 (macVD),周周毛细血管视网膜神经纤维层 (RNFL) 厚度和黄斑结核细胞内状层 (GCIPL) 的半网膜不对称性.
- 为了确定半网不对称的潜力作为NTG的分期工具.
- 评估NTG中上半球和下半球之间结构损伤的分布.
主要方法:
- 总共有199名患有NTG的受试者根据平均偏差 (MD) 进行分类,分为预先,早期,中度和高级阶段.
- 使用光学连贯断层扫描血管学 (OCTA) 测量血管密度.
- 使用光谱域光学连贯性断层扫描 (SD-OCT) 评估了周周膜RNFL和黄斑GCIPL的厚度.
- 半网膜不对称性被定义为高值和低值之间的绝对差异.
主要成果:
- 血回内膜不对称性参数在NTG阶段之间显示出显著的统计差异,趋势为中度>早期>晚期>预先.
- 在pcVD (hd pcVD) 和hd RNFL中,半网膜内血脉的差异显示出在预测和早期阶段之间的统计学意义 (P=0.009和P=0.003,分别).
- 每个阶段50%到80%的参与者在下半球表现出更严重的结构损伤.
结论:
- 半脊髓不对称参数显示了NTG各个阶段的明显趋势,有助于在中度阶段之前确定NTG的阶段.
- 这一参数有利于区分NTG的预测和早期阶段.
- 在NTG中,眼内结构损伤在下半球总是更严重.
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