Common eye infections can cause a variety of symptoms that can sometimes overlap with other eye conditions, such as allergies. The most common symptoms of an eye infection include redness, itching, swelling, pain, excessive tearing, and discharge that can be clear, white, yellow, or green. Sensitivity to light and blurred vision can also occur.
These symptoms can vary in severity depending on the type and severity of the infection. It can be difficult to distinguish eye infections from allergies or other eye disorders because they share common symptoms. Allergies often lead to itchy, red, watery eyes and eye infections.
However, allergies usually affect both eyes at the same time and are triggered by contact with allergens such as pollen or animal hair. On the other hand, eye infections often first affect one eye and can spread to the other eye if not treated promptly. The presence of a thick, colored discharge accompanied by pain and blurred vision indicates an infection rather than an allergy.
In addition, eye infections are often caused by bacteria, viruses or fungi, while allergies are immune reactions to harmless substances. If someone experiences persistent or severe eye symptoms, it is important to seek immediate medical attention.