What is the function of the iris in the eye?

Answer

According to the University of Michigan Kellogg Eye Center, the function of the iris in the eye is to control the amount of light that reaches the retina. It does this by changing the size of the pupil, the transparent window that allows light into the eye's interior.

The University of Michigan Kellogg Eye Center explains that the iris automatically grows and shrinks the pupil in response to light levels, with bright light causing a small pupil and darkness causing a large pupil. This is important for the light-sensing cells in the retina, which require enough light to activate but not so much as to overexpose or even damage them.

Q&A Related to "What is the function of the iris in the eye?"
There are five important parts of the eye; the cornea, pupil, lens, retina and iris. All of these parts need to work correctly for clear vision. The eye also has a blind spot, which
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The iris controls the size of the pupil. Which in turn, controls the amount of light entering the eye.
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The function of the eye is to work with the brain and provide us with vision. The eye sees the visions and the brain processes it for us.
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The iris of the eye is the part of the eye that controls the amount of light that
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Ask.com Answer for: what is the function of the iris in the eye
What Is the Function of the Iris of the Eye?
The eye is our most important optical instrument, giving the sense of sight and adding color and perspective to our vision. It is a very complex organ and is made up of five intricate parts. One of the most important parts is the iris.... More »
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