26/02/2026
Allergic reactions of the conjunctiva (the membrane covering the outer part of the eye and lining the inner surface of the eyelids) are common in childhood, but can affect people of all ages. The condition usually recurs and often resolves spontaneously. Pollen from many different sources can stimulate the allergy-responsible cells in the conjunctiva, causing a reaction. The most common type is seasonal allergic conjunctivitis, which occurs most frequently in children and during the spring and summer. Patients may also have other allergic diseases, such as allergic rhinitis and asthma, often associated with flower pollen. This condition, which is more common in men, generally decreases in frequency and severity with age. There are also more severe types of allergic conjunctivitis.
Symptoms typically include severe itching and redness of the eyes, often accompanied by light sensitivity. The eyes may become watery or produce a sticky discharge, while the eyelids can appear swollen and red. These eye-related symptoms may also occur alongside other allergic reactions such as a runny nose, sneezing, and coughing. Frequent eye rubbing is common and can sometimes lead to secondary infections.
