eye disorders
Allergic Conjunctivitis
Etiology of Allergic Conjunctivitis
 is due to a Type I to a specific antigen. Seasonal allergic conjunctivitis(hay fever conjunctivitis) is caused by airborne mold spores or pollen of trees, grasses, or weeds. It tends to peak during the spring, late summer, or early fall and disappear during the winter months—corresponding to the life cycle of the causative plant. Perennial allergic conjunctivitis(atopic conjunctivitis, atopic keratoconjunctivitis) is caused by dust mites, animal dander, and other nonseasonal allergens. These allergens, particularly those in the home, tend to cause symptoms year-round. is a more severe type of conjunctivitis most likely allergic in origin. It is most common among males aged 5 to 20 years who also have Atopic Dermatitis (Eczema) , 