A new and current concern for many teens and young adults who wear contacts is a rise in parasites growing in eyes.

A simple eye infection from leaving contact lenses in too long can lead to a parasite in the eye.

18 year old Jessica Greaney first went to the hospital in April complaining about her painfully swollen left eye. Doctors believed the swollen eye might have been caused by herpes, but they clamped her eye open and scraped a layer from her eyeball and found a parasite was growing within her eye.

With all this to say, doctors say that by cleaning and taking care of your contact lenses more you can prevent the possibly growth of parasites in the eye.