Which are the symptoms of Acanthamoeba keratitis?

Symptoms of Acanthamoeba Keratitis

Acanthamoeba keratitis is a rare but serious eye infection caused by a microscopic organism called Acanthamoeba. This infection primarily affects the cornea, the clear front surface of the eye, and can lead to severe vision loss if left untreated. Recognizing the symptoms of Acanthamoeba keratitis is crucial for early diagnosis and prompt treatment. Here are the key symptoms to watch out for:

Eye Pain and Redness

One of the most common symptoms of Acanthamoeba keratitis is intense eye pain, often described as a severe, throbbing sensation. The affected eye may also appear red and bloodshot. These symptoms may initially be mistaken for a more common eye infection or injury, but if they persist or worsen, it is important to seek medical attention.

Blurred or Hazy Vision

Acanthamoeba keratitis can cause a gradual or sudden decrease in vision. Blurred or hazy vision is a typical symptom, and it may affect one or both eyes. As the infection progresses, vision may become increasingly impaired, making it difficult to perform daily activities such as reading or driving.

Sensitivity to Light

Individuals with Acanthamoeba keratitis often experience heightened sensitivity to light, a condition known as photophobia. Exposure to even normal levels of light can cause discomfort, eye pain, and excessive tearing. Wearing sunglasses or seeking shade becomes necessary to alleviate these symptoms.

Excessive Tearing

Acanthamoeba keratitis can lead to excessive tearing or watery eyes. This symptom is often accompanied by eye redness and irritation. The eye's natural response to the infection is to produce more tears in an attempt to flush out the foreign organism.

Foreign Body Sensation

Many individuals with Acanthamoeba keratitis report a persistent feeling of having a foreign body, such as sand or grit, in their eye. This sensation can be quite uncomfortable and may worsen with blinking or rubbing the eye. It is important not to rub the eye excessively, as this can further irritate the cornea and potentially worsen the infection.

Eye Discharge

Acanthamoeba keratitis can cause the eye to produce an unusual discharge. The discharge may be watery, mucous-like, or even pus-like in severe cases. It is important to note that eye discharge can also be a symptom of other eye conditions, so a proper diagnosis is essential.

Difficulty Wearing Contact Lenses

Individuals who wear contact lenses are at a higher risk of developing Acanthamoeba keratitis. If you experience persistent discomfort, pain, or redness while wearing contact lenses, it could be a sign of this infection. In some cases, contact lens wearers may find it impossible to tolerate their lenses due to the extreme discomfort caused by the infection.

If you experience any of these symptoms, it is crucial to seek immediate medical attention from an eye care professional. Acanthamoeba keratitis requires specialized treatment, and early intervention can help prevent further damage to the cornea and preserve vision.