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Iritis is when your iris, the colored part of your eye, gets inflamed. It can be a serious problem, leading to vision loss and blindness. Learn more about the causes, symptoms, diagnosis ...
Limbal rings are circular areas of pigment around your iris (the colored part of your eye). Your cornea, which is the membrane that covers your eye like a lens, and the sclera, the white part of ...
The bottom line. Iritis is inflammation of your iris that often develops with no apparent cause. Autoimmune reactions, genetic factors, and injuries can all contribute to the development of iritis ...
Illustration of an iris flower with highlighted parts of the flower. Irises are perennial plants, growing from creeping rhizomes (rhizomatous irises) or, in drier climates, from bulbs (bulbous irises). They have long, erect flowering stems which may be simple or branched, solid or hollow, and flattened or have a circular cross-section.
Eye color. Eye color is a polygenic phenotypic trait determined by two factors: the pigmentation of the eye 's iris [1] [2] and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. [3] : 9. In humans, the pigmentation of the iris varies from light brown to black, depending on the concentration of ...
This is known as acquired heterochromia, and it may occur from an underlying condition such as: eye injury. eye inflammation. bleeding in the eye. tumors of the iris. Horner’s syndrome ...
The iris ( pl.: irides or irises) is a thin, annular structure in the eye in most mammals and birds, responsible for controlling the diameter and size of the pupil, and thus the amount of light reaching the retina. In optical terms, the pupil is the eye's aperture, while the iris is the diaphragm. Eye color is defined by the iris.
Blue rings around the iris are caused by cholesterol deposits in the eye. The deposits are actually white or yellowish but can appear blue. This might sound dangerous, but it isn’t. Researchers ...