Iris

The iris, or iris, is one of the most striking and recognizable parts of the eye. This is a round ring of collagen and elastic fibers that surrounds the pupil and protects it from external influences. Irises come in a variety of colors, ranging from white and gray to bright red and blue. Each iris color has its own unique characteristics and can serve as an indicator of genetic predisposition to certain diseases.

The iris plays an important role in the visual function of the eye. It contains many nerve endings that react to light and determine the degree of illumination in the environment. With certain diseases, the irises can change color and brightness. Some patients may have difficulty adapting to changing lighting conditions. For example, people with reddish irises may be sensitive to bright sunlight, while people with dark irises will feel discomfort in dim lighting.

The colors of the irises are also