Many causes: While it doesn't really matter, I presume you mean the outside, not the inside corner. One clue is HOW red is it: very dark redness is probably from a ruptured blood vessel in the sclera (white part). Inflammation or mild infection of the conjunctiva or episclera results in redness, but often associated discharge, too.Dry eyes can cause redness. Since it's been a while, you should see your eye doc
Answered 10/19/2015
2.1k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
4 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