相关实验视频
Updated: May 31, 2025

07:06
Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
Published on: March 29, 2022
2.5K
穿着近视控制眼镜修饰外周折射的对象的动态适应反应.
Zhenghua Lin1,2,3,4, Dimitrios Christaras5, Raul Duarte-Toledo1
1Laboratorio de Óptica, Universidad de Murcia, Campus de Espinardo, Murcia, Spain.
Investigative ophthalmology & visual science
|January 24, 2025
概括
用近视控制镜头或部分切除的眼镜修改外围光学并不影响成年人或儿童的适应反应. 这些发现表明,外围光学变化不会影响眼睛的聚焦能力.
科学领域:
- 眼科医生 眼科 眼科
- 视光学测量 视光学测量 视光学测量
- 视觉科学 视觉科学 视觉科学
背景情况:
- 外围光学与近视的进展有关.
- 适应反应也被认为是近视的潜在贡献者.
- 研究外围光学和适应之间的相互作用对于理解近视发展至关重要.
研究的目的:
- 为了确定是否用特定的眼镜镜片改变外围光学会影响适应反应.
- 为了比较不同近视控制镜片对住宿的影响.
- 评估部分切割玻璃对住宿的影响.
主要方法:
- 在目标距离变化期间,使用双通仪器测量了动态适应.
- 成人和儿童都配备了近视控制镜头 (MiYOSMART,Stellest,MyoCare) 或标准眼镜,中间有孔.
- 测试包括中央和外围视野评估与各种透镜折射.
主要成果:
- 在所有组中,在近刺激下,适应性滞后始终低于0.5D.
- 在近视控制镜片和部分切除的眼镜之间,没有发现适应幅度的统计学上显著差异.
- 习惯的眼镜作为比较的参考点.
结论:
- 使用经过测试的近视控制镜头对外围光学进行修改不会显著改变适应反应.
- 部分切割的玻璃杯也没有影响住宿.
- 这些结果表明,诱导的外围光学变化可能不会影响适应性系统.
相关概念视频
Focusing of Light in the Eye
2.4K
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...
2.4K
Depth Perception and Spatial Vision
537
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
537
Open Angle Glaucoma: Treatment
389
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...
389
Accessory Structures of the Eye
1.4K
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...
1.4K
Angle Closure Glaucoma: Treatment
433
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...
433

