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在视神经病变中,内视网膜结构变化和视觉功能障碍之间的关系的变化.

Hye Jun Joo1, Yeji Moon2, Jae Ho Jung3,4

  • 1Department of Ophthalmology, Seoul National University Hospital, Seoul, South Korea.

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概括

光学连贯断层扫描 (OCT) 在视神经病变中显示严重的内视网膜稀释. 然而,OCT在预测视觉功能的有用性有限,特别是考虑到视觉神经病变的原因.

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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:

  • 光学连贯断层扫描 (OCT) 识别了严重的内视网膜稀释 (RNFL/GCIPL低于1个百分位),通常表明视力功能不佳.
  • 尽管有显著的OCT发现,但一些患者的视力敏度仍然保持不变,突出了结构和功能之间的差异.

研究的目的:

  • 在RNFL/GCIPL极度变薄的视神经病患者中,将最佳校正视敏度 (BCVA) 与OCT参数相关联.
  • 确定OCT在预测这些患者视觉功能的局限性.
  • 探索不同的视神经病变病因如何影响结构功能关系.

主要方法:

  • 对131名视神经病患者进行了回顾性分析,这些患者患有OCT检测到的严重内视网膜稀释.
  • 在BCVA (logMAR) 和各种OCT参数 (RNFL,GCIPL) 之间的相关性分析.
  • 在不同视神经病变病因 (例如,LHON,ON,MOGAD) 中比较BCVA和OCT发现.

主要成果:

  • 平均BCVA为0.55±0.70 logMAR,具有显著的变化.
  • 时间GCIPL (r=-0.412) 和平均GCIPL (r=-0.366) 显示出与BCVA的最强相关性.
  • 与其他病因相比,在Leber遗传性视神经病变 (LHON) 中观察到较低的BCVA.
  • 异形视神经炎 (ON) 和MOGAD患者的BCVA结果更好,更一致.

结论:

  • OCT在反映光神经病症中的BCVA方面具有有限的实用性,即使有显著的内视网膜稀释.
  • 建议在解释OCT发现时谨慎,特别是与视觉功能和特定视觉神经病变的原因有关.
  • 视神经病变的病因影响了视网膜结构和视觉功能之间的关系.