Question

why do we have two eye

Answer 1

We need two eyes because a human being has a horizontal field of view of about 150° with one eye and of about 180° with two eyes. Thus, two eyes provide us wider horizontal field of view.

With one eye, the world looks flat, i.e., two dimensional only. With two eyes, the view is three dimensional, i.e., dimension of depth is added to our view.

Answer 2

close your right eye and and mentally note your field of vision with only the left one. now try the same by closing your left eye. okay now stop closing your eyes and appreciate the full field of vision available to you on account of your two eyes...
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