用光线追踪指导的LASIK用于高近视和眼:初步临床结果
Lei Luo1, Yimeng Fan1, Xindi Wang1
1Department of Ophthalmology, the First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi 710061, PR China.
Photodiagnosis and photodynamic therapy
|July 13, 2025
概括
射线追踪引导的LASIK有效地纠正了高近视和眼,实现了出色的视敏度和折射结果. 球形偏差保持稳定,表明该程序的过程.
科学领域:
- 眼科医生 眼科 眼科
- 折射手术是一种折射手术.
- 波面异常测量 波面异常测量
背景情况:
- 高近视和眼症在折射纠正方面存在重大挑战.
- 激光辅助的 in situ 角膜切除 (LASIK) 是一种常见的手术选择.
- 异常测量和指导系统的进步旨在改善LASIK的结果.
研究的目的:
- 评估光线追踪指导的LASIK的安全性,有效性和可预测性.
- 为了评估视觉敏度,折射结果和高阶偏差 (HOA) 后的过程.
- 为了确定光线追踪指导的LASIK对球形偏差的影响.
主要方法:
- 追溯分析来自42名高近视和眼症患者的77只眼睛.
- 利用InnvoEyes视图用于眼部波面异常测量,断层扫描和生物测量.
- 在手术前和手术后3个月评估视敏度,折射误差和HOA.
主要成果:
- 100%的眼睛实现了未经校正的远距离视力敏度 (UDVA) ≥20/20而没有损失校正的远距离视力敏度 (CDVA).
- 97%的眼睛具有明显的折射球形等价值 (MRSE) 在±0.50 D范围内; 83%的眼睛具有在±0.25 D范围内的光标.
- 总的HOA增加了,但球形偏差在LASIK后仍然相当.
结论:
- 射线追踪指导的LASIK对于高近视和眼是安全,有效和可预测的.
- 球形偏差的保存表明视觉质量得到了优化.
- 这种技术显示出在复杂情况下增强视觉敏度和折射结果的潜力.
相关概念视频
01:27Open Angle Glaucoma: Treatment
579
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...
579
01:28Angle Closure Glaucoma: Treatment
697
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...
697
01:16Focusing of Light in the Eye
3.2K
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...
3.2K