Can Showering with Contact Lenses Increase Risk of Acanthamoeba Infection? - Ophthalmology

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Showering with contact lenses can indeed increase the risk of Acanthamoeba infection, particularly if the lenses come into contact with water. Acanthamoeba is a type of free-living amoeba found in various environments, including freshwater, soil, and even tap water. When contact lenses are worn while showering, there is a risk that the lenses can become contaminated with this organism, especially if the water is not sterile.

1. Risk of Infection: The likelihood of developing an Acanthamoeba infection from a single incident of showering with contact lenses is generally low, but it is not negligible. The risk increases if the water comes into direct contact with the lenses or if the lenses are not properly cleaned and disinfected afterward. Acanthamoeba can adhere to the surface of the lenses, and if they are not removed and cleaned properly, the risk of infection can increase. However, the risk is significantly higher for individuals who frequently expose their lenses to water, such as swimming or showering with them on.

2. Wearing Contact Lenses After Incident: After an incident like this, it is advisable to refrain from wearing contact lenses for a few days, especially if you experience any discomfort, redness, or blurred vision. If you do not notice any symptoms, you may consider wearing your lenses again after a day or two, but ensure that you clean and disinfect them thoroughly before re-inserting. If you have any concerns or experience any symptoms, it is best to consult with an eye care professional before continuing to wear contact lenses.

3. Incubation Period: The incubation period for Acanthamoeba keratitis can vary, but symptoms typically appear within a few days to weeks after exposure. The most common symptoms include eye pain, redness, blurred vision, sensitivity to light, and tearing. If you notice any of these symptoms, it is crucial to seek medical attention promptly. Early diagnosis and treatment are essential to prevent complications, including potential vision loss.

In summary, while the risk of Acanthamoeba infection from a single incident of showering with contact lenses is relatively low, it is important to be cautious. Always prioritize proper hygiene when handling contact lenses, including washing your hands before touching your lenses and avoiding exposure to water while wearing them. If you have any symptoms or concerns, do not hesitate to reach out to an eye care professional for further evaluation and guidance.