Clear tiny line on iris. no pain or irritation, only found it because there's a little irritation when i wear my contacts. ?

Wearing contact lens: It can cause irritant keratitis(corneal inflammation) if your cornea are too dry, you wear the lens for too long,don't clean the lens properly.You have written about a lcear line on the iris. Is it a horizontal line at the bottom of the cornea.If so we call it as hypopion, a collection of inflammatory cells /sometimes even pus cells at the bottom between cornea and iris.Pl. see your eye coc. ASAP