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CBSE Class 8 Answered

What are the parts of the eyes? How can we distinguish between all of them?

Asked by rakshitgarg06 | 03 Feb, 2019, 01:45: PM
Expert Answer

Main parts

Functions

Cornea

Light enters the eyes through cornea.

Iris

It controls the amount of light entering the eyes.

Pupil

It dilates and contracts and thus enables us to in bright and dark light.

Eye-lens

It is a convex lens and focuses the light entering the eyes.

Ciliary muscles

Holds the eye lens and helps it to change its focal length.

Retina

Part of the eyes where image is formed

Optic nerve

It helps to carry the signals from the retina to the brain.

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