The structure which is most prominent in the eyeball, surrounding the pupil is the "IRIS". It gives the eye its color and helps in dilating and constricting the pupil.
It's called the iris.
The colored muscular diaphragms that surround the pupil are called the iris. They control the size of the pupil to regulate the amount of light entering the eye.
it will burn or melt
The coloured (or pigmented) part of the eye is the iris.
The iris is the coloured part of the eye, but it's the pupil that narrows and widens.
An Iris is a flower as well as part of the eye (it is the coloured ring around your pupil).
The coloured section of your eye is called the 'iris'. And the black circular ring is called the pupil.
The colored part of the human eye that controls how much light passes through the pupil is called the iris.
The dark hole in the center of your eye is called the pupil. It is an opening that allows light to enter the eye and reach the retina at the back of the eye. The size of the pupil can change in response to varying levels of light.
The coloured part of your eye is called the iris.
The iris is like a contractile structure of smooth muscles which surround the pupil. The sphincter pupillae, one of the smooth muscles categories of the eye, causes constriction of the pupil. The dillator pupillae, the other category of smooth muscles of the eys, causes the pupil to dilate.
The colored bit is called the iris, and is actually a muscle. it expands and contracts to make the pupil (black bit) either smaller or larger, depending how much light there is. the brighter the outside would is, the smaller the pupil gets.