Some forms of viral keratitis can't be completely eliminated.
Don't wear contact lenses when you go swimming. Don't "top off" the old solution that's already in the case. Discard the solution in the contact lens case each time you disinfect your lenses. Replace your contact lens case every 3 to 6 months. Replace your contact lenses as recommended. Use only sterile products that are made specifically for contact lens care, and use lens care products made for the type of lenses you wear. Follow your eye care provider's recommendations for taking care of your lenses. Wash, rinse and dry your hands thoroughly before handling your contacts. Choose daily wear contacts and take them out before going to sleep. If you wear contact lenses, proper use, cleaning and disinfecting can help prevent keratitis. Prevention Caring for your contact lenses Temporary or permanent reduction in your vision. Open sores on your cornea, called corneal ulcers. Chronic or recurrent viral infections of your cornea. Chronic corneal inflammation and scarring. Potential complications of keratitis include: If one of your corneas has been damaged from an injury in the past, you may be more vulnerable to developing keratitis. Use of corticosteroid eye drops to treat an eye disorder can increase your risk of developing infectious keratitis or make existing keratitis worse. If your immune system is weakened due to disease or medications, you're at higher risk of developing keratitis. Keratitis is more common in people who use extended-wear contacts, or wear contacts continuously, than in those who use daily wear contacts and take them out at night. The risk typically stems from wearing them longer than recommended, improper disinfection or wearing contact lenses while swimming. Wearing contact lenses - especially sleeping in the lenses -increases your risk of both infectious and noninfectious keratitis. However, even if you're exposed to these organisms, a healthy cornea is unlikely to become infected unless there has been some previous breakdown of the corneal surface - for example, from wearing a contact lens too long.įactors that may increase your risk of keratitis include:Ĭontact lenses. Bacteria, fungi and parasites in water - particularly in oceans, rivers, lakes and hot tubs - can enter your eyes when you're swimming and result in keratitis. Staphylococcus, streptococcus and pseudomonas are common bacteria involved in keratitis. The herpes viruses - herpes simplex and herpes zoster - may cause keratitis. Poor contact lens hygiene or contact lens overwear can cause both noninfectious and infectious keratitis. The cornea may become contaminated when the lens is in your eye, resulting in infectious keratitis. These organisms may live on the surface of a contact lens or contact lens carrying case. In addition, an injury may allow microorganisms to gain access to the damaged cornea, causing infectious keratitis. If any object scratches or injures the surface of your cornea, noninfectious keratitis may result.
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