Use the search feature and look up "arcus of cornea" (also known as arcus juvenalis in young people and arcus senilis in older people). Then go to Google IMAGES and type in the terms to see what they look like.
If you are younger than 75 and have not had your blood lipids (fats) and cholesterol checked in the last year have a fasting lipid test as a corneal arcus can be due to high blood cholesterol.
Also see an Eye MD for a in person exam. Find one at www.aao.org
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