There are a variety of different types of eye parasites that may infect a human host. Parasitic infections of the eye can sometimes be difficult to diagnose and treat, so symptoms should be reported to a doctor as soon as possible so that the process of testing can begin. Common symptoms of eye parasites include visual disturbances, light sensitivity, or a loss of some or all of the eyelashes. Eye redness may also occur.
Visual disturbances are common symptoms of eye parasites. These disturbances may include a partial or total loss of sight. This vision loss may be temporary or permanent, depending on the amount of scarring that occurs as the result of the parasitic infection.
Light sensitivity, also known as photophobia, may occur due to the presence of eye parasites. Patients who normally wear contact lenses may find that the eyes are more sensitive to light when not wearing the contacts. This sensitivity may be mild or so severe that the patient cannot handle being exposed to any light at all. Migraine headaches often begin to develop as the result of light sensitivity.
While eye parasites themselves cannot be seen with the naked eye, there are a few visible symptoms that should always be reported to a doctor for further evaluation. For instance, if the eyes suddenly begin to become crossed, especially if there are also other potential symptoms of parasites present, a person should make an immediate trip to the doctor.
The affected eye may become constantly reddened when a parasitic infection is present. In some cases, a small white ulcer may develop around the colored portion of the eye. All or some of the eyelashes may begin to fall out in some patients. White flakes may also develop on the top of the eyelashes.
In some cases, bacterial infections may develop as a result of damage done to the eye by the parasite. When this occurs, antibiotic therapy is often needed in order to prevent more serious complications. Medicated eye drops or oral antibiotics may be used alone or in combination with each other.
With early diagnosis and prompt medical attention, permanent eye damage may be avoided. Regular eye examinations will often allow the doctor to notice any developing changes before damage becomes severe or permanent. For this reason, any visual changes, especially in combination with any of the other potential symptoms of eye parasites, should be reported to a doctor right away for evaluation and treatment.