相关实验视频
Updated: Feb 25, 2026

07:06
Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
Published on: March 29, 2022
3.3K
医学学生中折射误差及其相关因素的流行病学
Alo Edin1, Salah Mohammed2, Ashenafi Abreha3
1Department of Epidemiology, School of Public Health, Institute of Health, Bule Hora University, Bule Hora, Ethiopia. jiblosa1@gmail.com.
Scientific reports
|February 23, 2026
概括
折射误差影响10.3%的埃塞俄比亚医学学生,与较少的户外活动和眼睛创伤有关. 解决这些可修改的因素对于保持学生的视野和学术成功至关重要.
科学领域:
- 眼科医生 眼科 眼科
- 公共卫生 公共卫生
- 医学教育 医学教育
背景情况:
- 折射误差是全球可纠正视力障碍的主要原因之一.
- 它带来了越来越多的公共卫生问题,特别是在年轻人群中,如医学学生.
- 眼部健康问题可能会对学业成绩和生活质量产生负面影响.
研究的目的:
- 评估埃塞俄比亚医学学生中折射误差的流行情况.
- 在这个人群中识别与折射误差相关的因素.
主要方法:
- 一项以机构为基础的横截面研究与哈瓦萨大学的417名医学学生进行.
- 数据采集使用半结构化问卷和临床检查清单.
- 使用多变量逻辑回归分析来确定显著的关联 (p < 0.05).
主要成果:
- 折射误差的患病率为10.3% (95% CI:7.2%-13.4%). 折射误差的发生率为10.3% (95% CI:7.2%-13.4%).
- 重要相关因素包括缺乏户外活动 (AOR=2.382),没有积极的休息 (AOR=2.442),之前的眼睛手术 (AOR=4.382) 和眼睛创伤 (AOR=7.188).
结论:
- 埃塞俄比亚的医学学生普遍存在折射误差,与全球趋势一致.
- 可修改的生活方式因素,如减少户外活动和缺乏活跃休息,与折射误差有关.
- 针对生活方式因素的积极查和预防措施对于视觉健康和学术有效性至关重要.
相关概念视频
Focusing of Light in the Eye
6.6K
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...
6.6K
Photoreceptors and Visual Pathways
9.6K
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,...
9.6K
Accessory Structures of the Eye
4.0K
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...
4.0K

