Question
During an eye exam, an opthalmologist saw a typical appearance around the edge of the iris and in the rim of the cornea as represented by an arrow in the picture below.Patients with which disease usually develop these types of rings?
A. Wilson disease.
B. Crohn’s disease.
C. Sarcoidosis.
D. Tuberculosis.
Show Answer
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Correct Answer » A
Explanation
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People with Wilson disease who show signs of nervous system damage usually have Kayser-Fleischer rings as represented by an arrow in the picture above. However, the rings are present in only 40 to 66 percent of people with signs of liver damage alone.
Kayser-Fleischer rings result from a buildup of copper in the eyes and are the most unique sign of Wilson disease. During an eye exam, a health care provider will see a rusty-brown ring around the edge of the iris and in the rim of the cornea. The iris is the colored part of the eye surrounding the pupil. The cornea is the transparent outer membrane or layer that covers the eye.
