Snellen Chart | Visual Acuity Test | How to test the visual acuity in Tamil | Study with Jeslin |

Описание к видео Snellen Chart | Visual Acuity Test | How to test the visual acuity in Tamil | Study with Jeslin |

Snellen Chart in tamil

How to test the Visual acuity?

What is Snellen chart?

fraction = d/ D

eg : 6/60 ,6/36,6/24,6/18,6/9,6/6

6 meter distance or 20 feet for distance vision

because the rays of light coming from infinity is 6m and beyond

Each line subtend a visual angle of 1 minute


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