What is the snellen letter chart is commonly used for ?

Health

1 answer:

tamaranim1 [39]3 years ago

8 0

It is use by Eye Care Professionals To check the eyesight of a person.
If u would have visited a eye care centre u would have noticed a chart like this--

If a person can see all the letters from a distance his eyesight is Perfect.If that person misses a letter or a line from the grid eye treatment or spectacles are given to the person for improving their eyesight

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