my son is five, I brought him to the eye doctor last year because I notice he had a white ring around his eye on top of his eye allergies he's been experiencing. he gave me steroid eye drops and told me to use it for 1 week, but it didn't clear it complete it just minimize it..then he prescribe pataday and told me use it once a day. around allergies seasons. this year I notice it but it's not around the whole pupil. it just a little on the upper pupil a thin section on the right eye. but the left is thicker only on the upper pupil.. I was going to make appointment for Thursday so the same eye doctor can look at it. I just need some guidance on what i'm daeling with.