Acanthamoeba is one of the most abundant organisms in
the environment, but rarely causes infections. When infection does
occur, however, it can be extremely serious and vision threatening.
Recently, there have been multiple reports of increasing incidence of Acanthamoeba
keratitis. Co-infection with a bacterial keratitis is common both in
the contact lens case and on the cornea, complicating prevention,
diagnosis and treatment.
By educating yourself about the symptoms and risk factors for Acanthamoeba keratitis, you can help protect yourself from this potentially sight-threatening infection. The best defense against Acanthamoeba keratitis infection is proper contact lens hygiene.
A red, (frequently) painful eye infection—especially if the discomfort does not improve with treatment.
|Infection from Acanthamoeba is rare, but when it does occur, it can threaten vision.
- Foreign body sensation, tearing, light sensitivity, and blurred vision.
- Red, irritated eyes lasting for an unusually long period of time after removal of contact lenses.
- Use of tap water in cleaning and disinfecting contact lenses—including the lens case.
- Swimming with contact lenses in the eyes, especially in fresh water lakes and rivers. Acanthamoeba keratitis has also been isolated from virtually all water sources—from pools to hot tubs to showers.
- Failure to follow lens care instructions and poor compliance.
Lens Care Guide
- Always wash hands before handling contact lenses.
- Rub and rinse the surface of the contact lens before storing.
- Contact lens solution must be discarded upon opening the case, and fresh solution used each time the lens is placed in the case.
- Replace lenses using your doctor’s prescribed schedule.
- Do not sleep in contact lenses unless prescribed by your doctor and never after swimming.
- Never swap lenses with someone else.
- Never put contact lenses in your mouth.
- See your optometrist regularly for contact lens evaluation.
- If you experience RSVP (redness, secretions, visual blurring or pain), return to your optometrist immediately!
only sterile products recommended by your optometrist to clean and
disinfect your lenses. Saline solution and rewetting drops are not
designed to disinfect lenses.