相关实验视频

Updated: May 21, 2025

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Published on: July 21, 2020

红色染色的隐形眼镜在石原测试错误分数在色差受试者:一个试点研究

Haliza Abdul Mutalib¹, Sharanjeet Sharanjeet-Kaur¹, Ong Yi Lin¹

¹Optometry & Vision Sciences Program, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia.

International journal of ophthalmology

|March 19, 2025

概括

红色染色的隐形眼镜 (RCL) 可以显著改善 Ishihara 测试错误分数对于有色视障碍 (CVD) 的人. 在特定波长中传导率较低的镜头在提高色彩视觉精度方面被证明是最有效的.

科学领域:

眼科医生眼科眼科
眼镜测量是指眼睛的测量.
视觉科学科学视觉科学

背景情况:

彩色视觉缺陷 (CVD) 影响了相当一部分人口,影响了日常活动.
伊希哈拉测试是心血管疾病的标准查工具,但其错误得分可能受到各种因素的影响.
红色染色的隐形眼镜 (RCL) 正被探索为患有心血管疾病的人提供潜在的帮助.

研究的目的:

评估四种不同类型的红色隐形眼镜 (RCL) 在降低先天性色彩视力缺陷的受试者中Ishihara测试误差的有效性.
为了比较RCLs在改善色彩视觉评估中具有不同的传导性质的性能.

主要方法:

六名患有先天性心血管疾病的受试者参加了一项蒙面随机研究.
石原板和Farnsworth-Munsell 100 Hue测试被用于评估色彩视觉错误和总错误得分 (TES).
伊希哈拉误差得分在基线和在非主导眼睛佩戴四种类型的RCL (A,B,C,D) 后被记录下来.

主要成果:

观察到RCL类型对伊希哈拉误差得分的显著影响 (P<0.001).
与没有镜头,C型和D型相比,RCL B型显示出明显较低的误差分数 (P<0.001).
对于TES<180的受试者来说,RCL类型B得到了50%的改善;对于TES>180,RCL类型A显示了80%的改善.

结论:

红色染色的隐形眼镜可以有效地改善心血管疾病患者的Ishihara测试错误得分.
在450-568 nm之间传输率较低的RCL和超过637 nm的高传输率是最有效的.
在550-580纳米之间阻断光线似乎对具有更严重色彩视觉缺陷的个体有益.

关键词:

有异常的三色素.颜色视力缺陷,色彩视力缺陷隐形眼镜的使用方法杜坦 (Deutan) 是一种除菌剂.一个质子,一个质子.

更多相关视频

$Subjective Refraction Test Using a Smartphone for Vision Screening$ 05:36

Subjective Refraction Test Using a Smartphone for Vision Screening

Published on: October 18, 2024

Visualizing Visual Adaptation

Visualizing Visual Adaptation

Published on: April 24, 2017

相关概念视频

Color Vision

Color Vision

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.

Photoreceptors and Visual Pathways

Photoreceptors and Visual Pathways

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,...

Focusing of Light in the Eye

Focusing of Light in the Eye

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...