A
disorder in which a person is born without part or all of the
iris (colored
tissue at the front of the eyeball).
Aniridia usually affects both eyes and causes other eye problems, including being sensitive to light and loss of vision.
aniridia (A-nih-RIH-dee-uh)
A disorder in which a person is born without part or all of the iris (colored tissue at the front of the eyeball). Aniridia usually affects both eyes and causes other eye problems, including being sensitive to light and loss of vision.
Source: The National Cancer Institute's Dictionary of Cancer Terms
(http://www.cancer.gov/dictionary)disorder (dis-OR-der)
In medicine, a disturbance of normal functioning of the mind or body. Disorders may be caused by genetic factors, disease, or trauma.
Source: The National Cancer Institute's Dictionary of Cancer Terms
(http://www.cancer.gov/dictionary)iris (I-ris)
The colored tissue at the front of the eye that contains the pupil in the center. The iris helps control the size of the pupil to let more or less light into the eye.
Source: The National Cancer Institute's Dictionary of Cancer Terms
(http://www.cancer.gov/dictionary)tissue (TIH-shoo)
A group or layer of cells that work together to perform a specific function.
Source: The National Cancer Institute's Dictionary of Cancer Terms
(http://www.cancer.gov/dictionary)
