What Is the Function of the Iris?

Answer

The iris contracts and expands the pupil, in reaction to the brightness of the surrounding light. It is a ring of muscle fibres positioned behind the cornea and in front of the lens.
Q&A Related to "What Is the Function of the Iris"
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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Regulates the amount of light entering the eye.
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The iris, the circular, colored area of the eye, controls the amount of
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The pupil is the "hole" that allows light to enter the eyeball. The iris controls the amount of light let in by opening and closing.
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1 Additional Answer
Ask.com Answer for: what is the function of the iris
The iris is a flat ringlike membrane behind the cornea of the eye with an adjustable circular opening in the center called a pupil. It is where the eye gets its color. Together with the pupil, the iris is responsible for regulating the amount of light...
Source: healthline.com
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The main function of the iris is to control the diameter and size of the pupils and hence the sum of light reaching the retina. It is composed of 3 layers which ...
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