相关实验视频
Updated: Sep 13, 2025

08:28
Development of an In Vitro Ocular Platform to Test Contact Lenses
Published on: April 6, 2016
10.7K
一个3区进步TM设计Kalifilcon一个水凝多焦隐形眼镜的视觉性能不受瞳孔大小的影响:多中心临床研究的结果
Nitasha R Phatak1, William Reindel1, Marjorie J Rah1
1Bausch + Lomb Incorporated, Rochester, NY, USA.
Clinical optometry
|July 30, 2025
概括
这项研究发现,卡利菲尔康A多焦点隐形眼镜 (MFCL) 在各种瞳孔大小中提供稳定的视力. 患者报告的结果是有利的,表明每日一次性水凝MFCLs的良好表现.
科学领域:
- 眼科医生 眼科 眼科
- 眼镜测量是指眼睛的测量.
- 视觉科学 视觉科学 视觉科学
背景情况:
- 瞳孔大小可能受到年龄和照明等因素的影响,可能会影响多焦点隐形眼镜 (MFCL) 的性能.
- 评估瞳孔大小对视觉结果的影响对于理解MFCL疗效至关重要.
研究的目的:
- 为了研究一个特定的每日一次性水凝MFCL (kalifilcon A) 瞳孔大小和视觉性能之间的相关性.
- 评估瞳孔大小对视敏度和主观视力评级的影响,使用3-Zone ProgressiveTM设计的MFCL.
主要方法:
- 一项为期3周的开放性研究,涉及40岁及以上的习惯性MFCL佩戴者.
- 学生的大小被测量,双眼高对比视敏度 (VA) 在远距离,中间和近距离被评估.
- 在1周和3周的随访期间,主观视力表现以0-100级评价.
主要成果:
- 在1周后,学生尺寸和距离或近视敏度之间没有显著的相关性,中间视力相关性很弱.
- 在3周后,在任何距离上都没有观察到瞳孔大小和视力敏之间的显著相关性.
- 参与者报告了高度有利的主观视力评级,在任何后续访问中都与瞳孔大小没有显著的相关性.
结论:
- 卡利菲尔康A每日一次性水凝MFCL在广泛的瞳孔大小中表现出稳定的视力敏度.
- MFCL提供显著有利的主观视觉评级,表明不同患者群体的良好表现.
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
691
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...
691
Open Angle Glaucoma: Treatment
577
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...
577
Glaucoma: Overview
770
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...
770

