How does having two eyes help us? Is the eyesight of a single eyed person worse than a person with two eyes?

Open in App

Solution

Two eyes are extremely useful for us in the following ways:

It expands our field of vision.

It helps us in depth-perception i.e. how far is an object from the eye.

It helps us in object identification (for example identifying your pencil box as one object).

The first point is a permanent advantage for a two-eyed person over a single-eyed person. However, our brain is extremely advanced and adapts to the environment quite well, given sufficient time. This allows even the person with a single-eye to gain the skills depth perception and object identification.

Suggest Corrections

Similar questions

Explain clearly why, a person who has lost the sight of one eye is at a disadvantage compared with the normal person who has two good eyes.

Q. In a class there are

10

men and

20

women. Out of them half of the number of men and half of the number of women have brown eyes. Out of them if a person is chosen at random, the chance that for the person chosen to be a man or brown eyed person is

A man having black eyes, whose father had blue eyes, marries a woman having blue eyes. If black eye is dominated over blue eyes, then what percentage of their offsprings can be blue-eyed?

A man having black eyes, whose father had blue eyes, marries a woman having blue eyes. If black eye is dominant over blue eyes, then what percentage of their offsprings can be blue-eyed?

Q. In man brown eyes (B) are dominant over blue eyes (b) A blue eyed man marries a brown eyed woman whose mother had blue eyes. What proportion of children are expected to have blue eyes ?

Join BYJU'S Learning Program