Question

How would our be vision with a third eye on the back?

Answer 1

This phenomenon of the angle of field of view is known as schomaticity.
Obviously, humans already have a field of view of 180° with two eyes.
With the third eye on the centre of our back head the view would become 360° and we would be able to see everyone around us ! But just imagine !!
How difficult it would be wish good morning to your teachers when all of them appear at the same time and are visible !!
Whom do you wish first !! :-D
math, physics or social study professor?? lol

Hope this helps you !

Answer 2

If a 3rd eye was attached on the back of our head.. Then to get the suitable vision.. We must need 2 brain for both the pair of optic nerve