It's likely normal: A grayish blue ring covering the outer iris is most commonly caused by cholesterol which actually becomes deposited in the peripheral cornea, which is in front of the iris. It's called 'arcus senilis' and is usually normal. Because you are only 41, you should make sure your blood cholesterol levels are ok.
Answered 6/26/2016
4.9k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
6 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question