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The pupil serves two important functions - to control the illumination in the eye, and to improve the optical quality of the image on the retina. The first function is obvious - the smaller the hole, the less light gets in. It therefore serves to regulate the light level within the retina. The second function is very important because as the pupil gets larger, more aberrations are created and the image on the retina gets "messier". People with no iris (aniridia) have very poor visual acuity because the eye can't get a sharp image, both because there is to much light (over-saturation) and because there are lots of optical aberrations present. One final function of the pupil is to increase depth of focus, similar to an aperture stop on a camera. This basically increases the range (distance) over which things appear sharp.
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoThe pupil is circular opening located in the center of the iris (the colored part of the eye). It controls the amount of light that enters the eye.
It helps you see silly.
Wiki User
∙ 15y agoIt regulates the amount of light that reaches the retina, allowing us to seeboth in strong daylight and at dusk.
Wiki User
∙ 13y agoIt regulates the amount of light that enters the eye
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Where is the pupil in your eye?
The pupil is the black center part of the eye.
How many pupil are in an eye?
There is one pupil in each eye.
Where is the pupil of the eye situated?
black center part of the eye
Why is the part of your eye excluding pupil white?
the white part of the eye "sclera" doesn't need to catch light unlike the pupil or the iris.
Is the pupil a physical structure of the eye?
No, because it is defined as a round space in your eyes that light passes through the pupil to reach the retina and form an image.
What is the main function of the iris?
adjusting the light entering the eye through the shrinkage and expansion of the pupil is the main function of the isris
What is the major function of the eye?
pupil
What part of the eye controls the amount of light passing into the eye?
The pupil constricts or dilates depending on how much light is available. The pupil's function is controlled by our autonomic nervous system.
What is the function of the iris in the human eye?
The iris controls the size of the pupil. Which in turn, controls the amount of light entering the eye.
Where is pupil in your eye?
The pupil is the black center part of the eye.
Where is the pupil in your eye?
The pupil is the black center part of the eye.
How many pupil are in an eye?
There is one pupil in each eye.
What is an analogy for the part of the eye pupil?
Pupil is to eye as nostril is to nose
What are the three main important parts in your eye?
1.Pupil 2.Lens 3.Cornea
The opening through which light enters the eye?
The pupil allows light to enter the eye.
Any drug that dilates the pupil of the eye is called?
Prozac can dilate the pupil of the eye.
What is the centere of the eye called?
It is actually called "The Eye"!
