相关实验视频
Updated: Sep 12, 2025

07:06
Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
Published on: March 29, 2022
2.7K
客观评估视力表现在不同的读取距离后光滑切割镜片式角膜切割 (SILK) 的近视
Rohit Shetty1, Pooja Khamar1, Raghav Narasimhan2
1Department of Cornea and Refractive Surgery, Narayana Nethralaya, 121/C Chord Road, 1st R Block, Rajajinagar, Bangalore, 560010, India.
Scientific reports
|August 9, 2025
概括
顺滑切割镜片角膜切割 (SILK) 手术在中间距离提供了良好的视觉敏度,与缩眼相比较. 这种折射性手术显示出较小的高阶异常诱导,使其成为近视纠正的可行选择.
科学领域:
- 眼科医生 眼科 眼科
- 折射手术是一种折射手术.
- 角膜外科手术 角膜外科手术
背景情况:
- 镜片形状的变化可能会影响未来的长视治疗.
- 光滑切割镜片角膜切割 (SILK) 是一种折射手术技术.
- 了解SILK手术的视觉结果对于患者选择和治疗计划至关重要.
研究的目的:
- 为了评估近视纠正SILK手术后眼睛的视野深度.
- 为了比较SILK治疗眼睛的视觉表现与EMMETROPIC和LASIK治疗眼睛.
- 为了评估SILK手术后的折射精度和视觉质量.
主要方法:
- 在SILK手术后6个月,对69只眼睛使用iTrace异常测量仪进行了眼睛异常测量.
- 在异常测量过程中,眼睛固定在远距离,中间 (60厘米) 和近距离 (40厘米) 的目标上.
- 数据与透眼和激光辅助 in-situ 角膜修复 (LASIK) 眼睛的历史数据进行了比较.
主要成果:
- 远距离和近距离的视力敏度在所有组 (SILK,透,LASIK) 中都临床上相似.
- 与LASIK眼相比,SILK眼和凝视眼显示出更高的中间视敏度 (P < 0.05).
- 与LASIK相比,SILK手术导致较小的高级异常诱导,具有足够的折射精度和更好的中间视力.
结论:
- 丝手术为近视提供了有效的折射校正,具有良好的视觉结果.
- 该程序提供可比的中间视力敏度,以眼睛缩和优越的结果,以LASIK.
- 丝手术与最小的高阶异常和良好的折射精度有关.
相关概念视频
Focusing 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
Angle Closure Glaucoma: Treatment
681
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...
681
Open Angle Glaucoma: Treatment
568
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...
568

