Eye allergies often affect the conjunctiva, a clear layer of skin overlying the eyes. This clear layer of skin is the same type of skin that lines the inside surface of the nose. Because these two areas are so similar, the same allergens (substances that induce an allergic reaction) can trigger the same allergic response in both areas.
Common eye allergy triggers include: Pollen, Grass, Weeds, Dust, or Pet dander
Learn more about Causes of Eye Allergies at www.webmd.com