[眼内压力与与年龄相关的眼硬度变化之间的关系]
O V Svetlova1,2, I N Koshits3, R M Pankratov4
1Academician I.P. Pavlov First St. Petersburg State Medical University, Saint Petersburg, Russia.
Vestnik oftalmologii
|July 4, 2024
概括
眼睛刚性与各个年龄组的真眼内压 (IOP) 相对应. 这一发现有助于为健康和青光眼患者建立特定的IOP区域,帮助临床管理.
科学领域:
- 眼科医生 眼科 眼科
- 生物物理学的生物物理.
- 老年学是一门学科.
背景情况:
- 眼内压力 (IOP) 是青光眼的关键因素. 与年龄相关的变化可能会影响眼睛的生物力学,包括眼睛的纤维衣 (FTE).
- 了解FTE刚性和IOP之间的关系对于准确诊断和眼部疾病的管理至关重要.
- 世界卫生组织 (WHO) 将衰老时期分类,这可能会影响眼睛的参数.
研究的目的:
- 为了研究与年龄相关的FTE刚性和健康的眼睛和开角玻璃眼 (OAG) 眼睛的真实IOP之间的相关性.
- 根据FTE刚度来定义特定年龄的IOP区域,适用于健康眼睛和眼睛.
- 评估世卫组织定义的衰老期对FTE刚度和内血压范围的影响.
主要方法:
- 使用Koshits-Svetlova动态诊断方法使用眼睛响应分析仪度.
- 研究对674名健康患者和518名OAG患者进行了检查,年龄在18-90岁之间.
- 进行了理论分析,以估计FTE刚性,真实IOP和青少年IOP水平.
主要成果:
- 确定FTE刚度是真正IOP的可靠指标,独立于中角膜厚度.
- 具体的IOP区域被定义为:低 (≤13毫米升),中等 (14-20毫米升),高 (21-26毫米升),高 (27-32毫米升),低补偿 (33-39毫米升) 和低补偿 (≥40毫米升).
- 具有相同FTE刚度的眼睛表现出一致的IOP水平,无论健康状况或青光眼病状况如何.
结论:
- FTE刚性是一个基本的生理学标准,准确地反映了真正的IOP.
- 基于FTE刚性的建立的IOP区域对于临床应用非常有价值,特别是在多诊所环境中.
- 这项研究为评估IOP与眼部刚性和衰老相关的新框架提供了新的框架,有助于个性化患者管理.
相关概念视频
Glaucoma: Overview
538
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...
538
Open Angle Glaucoma: Treatment
427
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...
427
Accessory Structures of the Eye
1.5K
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...
1.5K
Photoreceptors and Visual Pathways
6.0K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
6.0K


