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What is the function of Iris,pupil,retina …

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What is the function of Iris,pupil,retina and optic nerve

Posted by Aastha Kumari Kumari 5 years ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 5 years ago

Iris: It controls the amount of light entering the eye.
Pupil: It controls the illumination in the eye.

Retina: It is a delicate membrane having a large number of light-sensitive cells called 'rods' and 'cones' which respond to the intensity of light and colour of objects respectively.
Optic nerve: It conveys the image formed on the retina to the brain.

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