眼球生长与视神经头部形状和玻璃眼病有什么联系? 拉米娜·克里布罗萨/布鲁赫的膜开放偏移理论
Seok Hwan Kim1, Martha Kim2, Kyoung Min Lee3
1The One Seoul Eye Clinic, Seoul, South Korea.
Experimental eye research
|June 21, 2024
概括
近视轴延长导致视神经头部之间的偏移.
科学领域:
- 眼科和眼镜检查的眼科和眼镜检查
- 神经科学是一个神经科学.
- 医疗成像医学成像
背景情况:
- 视神经头部 (ONH) 对于视力至关重要,它从视网膜质细胞传输信号到大脑.
- 眼球生长,特别是近视时的轴延长,改变了关键ONH结构的对齐.
- 这种布鲁赫膜开口 (BMO) 和晶片膜 (LC) 之间的不对齐或偏移与ONH形态和玻璃眼风险有关.
研究的目的:
- 审查和总结近视轴延长期间的ONH变化.
- 探索LC/BMO偏移和帕拉帕皮勒缩的发展之间的关系.
- 调查LC/BMO偏移的潜力,作为一种临床标志物,用于格劳科马的评估.
主要方法:
- 对近视轴延长期间的ONH变化进行前性研究的审查.
- 分析了视网膜中枢血管干位置与LC转移/BMO偏移之间的相关性.
- 关于LC/BMO偏移和眼损伤之间的联系现有研究的总结.
主要成果:
- 近视轴延长导致LC和BMO之间的偏移,受视网膜和结膜层的差异生长的影响.
- 中央视网膜血管干的位置可以预测LC转移和随后的LC/BMO偏移.
- LC/BMO偏移与帕拉皮勒缩和增加对青光斑损伤的脆弱性有关.
结论:
- LC/BMO偏移是近视成年人ONH形态多样化的主要驱动因素.
- LC/BMO偏移可以作为评估眼风险和进展的重要临床指标.
- 需要进行进一步的研究,以充分阐明LC/BMO偏移在青光眼病原性中的作用.
相关概念视频
01:25Glaucoma: Overview
541
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...
541
01:27Open 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
01:28Angle Closure Glaucoma: Treatment
473
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...
473
01:20Anatomy of the Eyeball
7.0K
The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle...
7.0K
01:17Accessory 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
01:16Focusing of Light in the Eye
2.7K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
2.7K