Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Focusing of Light in the Eye01:16

Focusing of Light in the Eye

5.3K
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...
5.3K
Influence of Earth's Curvature and Atmospheric Refraction on Leveling01:26

Influence of Earth's Curvature and Atmospheric Refraction on Leveling

873
During leveling, the Earth's curvature and atmospheric refraction introduce deviations in the line of sight from a true horizontal reference. When the line of sight is leveled, it remains perpendicular to the plumb line only at a single point. Beyond this, it deviates due to the Earth’s curvature, represented by the correction C. For a sight distance D, the deviation can be derived using the relationship:This relationship shows that the deviation increases quadratically with distance. Over a...
873

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Influence of diffractive surface geometry on optical quality and halo formation in sinusoidal trifocal intraocular lenses.

Scientific reports·2026
Same author

Optometrist-guided versus self-driven subjective refraction using tunable optics: quantifying the professional's impact.

Journal of optometry·2026
Same author

Asymmetry between nasal and temporal refraction with accommodation in myopes and emmetropes.

Biomedical optics express·2026
Same author

Spatial-shifting cepstrum: holography without a known reference beam.

Optics express·2025
Same author

Long-Term Natural History of Treatment-Naïve Geographic Atrophy in Age-Related Macular Degeneration.

Translational vision science & technology·2025
Same author

Hybrid Iterating-Averaging Low Photon Budget Gabor Holographic Microscopy.

ACS photonics·2025

相关实验视频

Updated: Jan 15, 2026

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

1.7K

在主观折射中探索DIY方法.

Raquel Salvador-Roger1, José J Esteve-Taboada1, Sara Ferrer-Altabás1

  • 1Department of Optics and Optometry and Vision Sciences, University of Valencia, Burjassot, Spain.

PloS one
|October 16, 2025
PubMed
概括

使用可调节镜头的新 DIY (DIY) 主观折射方法显示了折射误差和视觉敏度的良好重复性. 这种DIY方法为自我折射提供了一个可重复的替代方案,可能有助于服务不足的地区.

更多相关视频

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
05:14

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

553
Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
07:06

Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients

Published on: March 29, 2022

3.2K

相关实验视频

Last Updated: Jan 15, 2026

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

1.7K
Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
05:14

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

553
Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
07:06

Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients

Published on: March 29, 2022

3.2K

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:

  • 主观折射对于确定精确的光学校正至关重要.
  • 传统的方法需要训练有素的专业人员,在某些地区限制了获取.
  • 开发可访问的,自我管理的折射技术是一个正在进行的研究领域.

研究的目的:

  • 为了评估一个新的DIY主观折射技术的精度和准确性.
  • 为了评估一个DIY方法,使用手动调节球形镜头和可调节的形镜头.

主要方法:

  • 66名参与者进行了3次DIY自我折射测量.
  • 使用了一个可调节的球形镜头和一个可调节的平分镜头 (Stokes镜头).
  • 评估了折射误差,视力敏度和测量时间;分析了可重复性和与传统方法的一致性.

主要成果:

  • 这种DIY方法在折射误差组件 (M,J0,J45) 和视力敏度方面表现出良好的可重复性.
  • 可重复性系数为±0.38 D,±0.21 D,±0.21 D用于折射误差,视力敏度为±0.06 logMAR.
  • 与传统折射相一致的极限处于可接受的范围内,尽管比重复性更广泛.

结论:

  • DIY主观折射技术是一种可重复的自我折射方法.
  • 虽然它不是传统折射的替代品,但它显示了特殊情况的潜力,例如偏远地区或人道主义努力.
  • 需要进一步的研究来完善该技术并探索其全部功能.