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Almanac: The eye chart

Almanac: The eye chart

January 18, 1908, is the anniversary of the death of Dutch ophthalmologist Herman Snellen, who created the familiar test for visual acuity. Charles Osgood reports.

CBS News2021年3月30日

Eye Chart Test

The ultimate eye test

The ultimate eye test

2016年3月13日

The hidden math behind your DMV’s eye test

The hidden math behind your DMV’s eye test

The VergeRachel Becker

已浏览 9 次2018年5月8日

What You Need To Know Before Taking An Online Eye Exam

What You Need To Know Before Taking An Online Eye Exam

2018年10月3日

热门视频

Baby Eye Colour Calculator

Baby Eye Colour Calculator

FacebookMedibank

已浏览 25.6万次2020年10月27日

Eye test chart with glasses

Eye test chart with glasses

shutterstockduoanimation

2017年11月8日

Point of view: a patient looking at an eye chart (a tool to check the eyesight), having a hard time focusing on the letters (blurry vision).

Point of view: a patient looking at an eye chart (a tool to check the eyesight), having a hard time focusing on the letters (blurry vision).

2021年7月18日

Eye Chart Types

Eye Anatomy: The Main Parts of the Eye & How We See

Eye Anatomy: The Main Parts of the Eye & How We See

specialtyeyeinstitute.com

2018年1月22日

Mayo Clinic Minute: What are eye floaters?

Mayo Clinic Minute: What are eye floaters?

FacebookMayo Clinic

已浏览 1.9万次2019年1月17日

Eye Diagram With Labels and detailed description

Eye Diagram With Labels and detailed description

2019年12月13日