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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Eduncle Best Answer
Normal vision is 20/20. That means you can clearly see an object 20 feet away. If you’re legally blind, your vision is 20/200 or less. That means if an object is 200 feet away, you have to stand 20 feet from it in order to see it clearly. But a person with normal vision can stand 200 feet away and see that object perfectly.