听力神经瘤中的眼表面平衡不稳定:角膜神经密度下降和眼反射异常
在PubMed上查看摘要
概括
此摘要是机器生成的。声神经瘤会影响眼睛表面的健康,导致角膜敏感性降低和眼膜不稳定. 眼反射电生理学也发生变化,神经信号的延长时间被观察到.
科学领域
- 眼科 眼科
- 神经科学
- 眼部表面疾病
背景情况
- 听力神经瘤是前庭耳神经的瘤, 可能会影响控制眼睛功能的大脑神经.
- 声神经瘤患者的眼表面和电生理变化没有得到充分记录.
研究的目的
- 在患有声神经瘤的患者中调查眼睛表面状况和电生理参数.
- 将这些发现与瘤特征联系起来.
主要方法
- 涉及29名声神经瘤患者和11名健康对照者的前性病例对照研究.
- 综合眼科评估,包括角膜敏感性 (ST I),眼膜破裂时间 (TFBUT),角膜神经的体内共焦显微镜 (IVCM) 和眼反射电生理学.
- 与汉诺威分类的相关性分析.
主要成果
- 与对面眼相比,声神经瘤患者的ST I和TFBUT显著减少.
- 在听力神经瘤患者中观察到角膜神经密度降低.
- 在眼反射电生理学中,R1和R2波的延长延迟在ipsilateral侧被观察到.
- ST值与声神经瘤汉诺威分类负相关.
结论
- 声神经瘤与明显的眼睛表面异常有关,包括角膜敏感性降低和膜不稳定.
- 角膜神经形态和眼反射电生理学的变化是特征性发现.
- 这些眼部表现与声神经瘤的存在和特征有关.
相关概念视频
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...
Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
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...
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...

