在高张力和正常张力玻璃眼中Lamina Cribrosa孔的三维微型架构,使用光学一致性断层扫描
Paul Bastelica1, Antoine Labbé1,2,3, Pascale Hamard1
1Department of Ophthalmology, Quinze-Vingts National Ophthalmology Hospital, IHU FOReSIGHT.
Journal of glaucoma
|September 10, 2024
概括
高血压玻璃眼 (HTG) 和正常血压玻璃眼 (NTG) 与非玻璃眼 (NG) 眼相比,呈现出明显的板状玻璃眼 (LC) 孔状特征. 这些微观架构的变化与玻璃眼病的严重程度相关.
科学领域:
- 眼科医生 眼科 眼科
- 玻璃眼研究研究 玻璃眼研究
- 视神经头部微结构 视神经头部微结构
背景情况:
- 眼神板 (LC) 是视神经头部的关键结构,其孔隙微观结构可能在青光眼中发生变化.
- 了解这些变化对于诊断和管理不同类型的玻璃眼瘤至关重要,包括高压玻璃眼瘤 (HTG) 和正常压玻璃眼瘤 (NTG).
研究的目的:
- 在HTG,NTG和非白内障 (NG) 个体的患者中,量化比较LC孔的微架构.
- 为了研究LC孔参数和青光眼严重程度之间的关系.
主要方法:
- 分析了来自52只眼睛的光谱域-光学连贯性断层扫描 (SD-OCT) 图像 (18 NG, 18 HTG, 16 NTG).
- 使用断层图像和细分软件来追踪毛孔的LC重建.
- 在三组中对孔径长度,扭曲度和垂直度进行定量比较,并对共变量进行相关性分析.
主要成果:
- 与NG眼相比,HTG眼中的孔明显高于NG眼中的孔 (P=0.011).
- NTG眼睛的毛孔比NG眼睛短得多 (P=0.005).
- 除垂直性外,LC孔隙参数与青光眼严重性指标 (视野指数,平均偏差,RNFL,GCC) 有关.
结论:
- 在HTG患者的LC毛孔显示出比NG患者更大的形.
- 与NG患者相比,NTG患者的LC毛孔较短.
- 在LC孔微架构的变化与眼光神经病变的严重程度有关.
相关概念视频
Glaucoma: Overview
528
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
528
Open Angle Glaucoma: Treatment
407
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
407
Angle Closure Glaucoma: Treatment
453
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
453


