相关实验视频
Updated: Sep 11, 2025

05:23
Investigating Migraine-Like Behavior Using Light Aversion in Mice
Published on: August 11, 2021
4.0K
蓝光对凝聚体形成的影响
Dennis Ee See Ong1, Safinaz Mohd Khialdin1
1Department of Ophthalmology, UKM (Universiti Kebangsaan Malaysia) Medical Centre, Kuala Lumpur, MYS.
Cureus
|August 11, 2025
概括
蓝光暴露会影响眼睛的发育和凝视,影响折射误差. 了解这些影响对于数字时代的健康视力至关重要.
科学领域:
- 眼科和视觉科学 眼科和视觉科学
- 发展生物学 发展生物学
背景情况:
- 凝视化,即实现正常视力的过程,最初被认为是基因决定的.
- 最近的发现表明,环境因素显著影响眼睛的生长和折射状态,挑战遗传决定性.
- 眼睛在发育过程中确定失焦信号的精确机制仍然不完全理解.
研究的目的:
- 审查蓝光暴露对体外化的影响,特别适用于儿童增加屏幕时间.
- 研究光波长,特别是蓝光在调节眼睛生长和折射发育中的作用.
- 综合当前关于影响城市化因素的复杂相互作用的知识.
主要方法:
- 综合审查现有的文学关于体积化和折射误差的发展.
- 分析了利用各种动物模型进行的研究,包括小,几内亚猪,子和树.
- 专注于研究照明条件,特别是蓝光和纵向色差 (LCA) 对眼睛发育的影响.
主要成果:
- 吸管化是一个复杂的过程,受多种因素的影响,包括光波长,强度和昼夜节律.
- 暴露于短波长的蓝光导致某些物种 (小,鱼,豚鼠) 的视力过高,而其他物种 (树,子) 的结果不同.
- 照明条件影响眼睛的生物识别;蓝光可以减少眼睛的长度与积极的透镜失焦,并不会增加胸膜厚度,不像红色或白色的光.
结论:
- 纵向色态偏差 (LCA) 导致波长依赖的失焦和折射变化,但对于凝视化来说并不重要.
- 环境光,特别是蓝光,在调节眼睛生长和折射发育方面发挥着重要作用.
- 虽然照明条件可以暂时改变眼部生物识别,但它们对体外化的长期影响需要进一步调查,特别是在数字设备使用的背景下.
更多相关视频
08:09Electrophysiological Methods for Measuring Photopigment Levels in Drosophila Photoreceptors
Published on: June 2, 2022
2.3K
09:29In Vivo Investigation of Antimicrobial Blue Light Therapy for Multidrug-resistant Acinetobacter baumannii Burn Infections Using Bioluminescence Imaging
Published on: April 28, 2017
9.5K
相关概念视频
Photoreceptors and Visual Pathways
6.5K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
6.5K
Anatomy of the Eyeball
7.6K
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...
7.6K
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
Color Vision
698
Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
698