Most of the time eye allergies occur due to other types of allergic responses, when an allergic reaction takes place the eyes may overreact to a substance perceived as harmful, even though it may not be. Symptoms of eye allergies (conjunctivitis) are watery, itchy, red, sore, swollen and stinging eyes. Itching of the eyes is the most important symptom of allergic conjunctivitis. Without itching, it is much less likely that a person is suffering from allergies of the eyes. Both eyes are usually affected, although one eye may be more symptomatic than the other. This Eye Allergy Medical PowerPoint Theme or template is primarily colored Blue, Dark. The download includes a Title slide that's distinct from other slide layouts.