13 Causes of Red Eye

5. Contact Lenses

Another common reason for red eyes is over-wearing or not taking proper care of your contact lenses. The eyes are very sensitive, so when the contact lens accumulates buildup or bacteria, the eyes immediately respond by becoming red and irritated. Contact lenses can also lead to dry eye syndrome because they limit the amount of oxygen that reaches the eye. One way to reduce irritation is to keep your contact lenses clean and change them often. Contact lens wearers should also own a good pair of glasses, and wear them a few times a week instead of contact lenses. Daily disposable lenses could also be a solution for some people, as they tend to be thinner, and cleaner than reusable contact lenses.