Question

explain human eye with diagram

Answer 1

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Answer 2

✔️ Light enters the eye through a thin membrane called the CORNEA. It forms the transparent bulge on the front surface of the eyeball.

✔️ The CRYSTALLINE LENS merely provides the finer adjustment of focal length required to focus objects at different distance on the retina.

✔️ IRIS is a dark muscular diaphragm. It is situated behind the cornea. It controls the size of the pupil.

✔️ The PUPIL regulates and control the amount of light entering the eye.

✔️ The RETINA is a dedicated membrane having enormous number of light sensitive cells.

⏩⏩ The light sensitive cells if RETINA get activated upon illumination and generate electrical signals. These signals are sent to the brain through the optic nerves. The brain interprets these signals and finally, process the information so that we see objects as they are.

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