Allergic Conjunctivitis the scientific name for this condition is caused, like an allergic reaction, by a mistaken triggering of your body’s immune system. Allergens cause your immune system “panic” causing it to react negatively to things which actually pose no harm to the body at all. Allergens such as pet dander, pollen and dust can trigger this reaction. This allergic reaction releases a chemical called histamine, which makes your eyes dry out and produce more tears. This reaction is meant to flush out foreign objects. The blood vessels in your eyes also become inflamed, which is what gives your eyes their bloodshot look.
Relief From Eye Allergies
Although allergies usually stop once the allergen is removed, and the eyes return to normal, this is not always possible with allergens such as dust and pollen, since they are just about everywhere. For these and other allergies, eye doctors recommend eye drops either over the counter or prescription. These eye drops should help to minimize the effects of the allergens in your environment. Many of these eye drops are formulated as anti-histamines, meaning that they block histamine from the body. There are also a number of other ways that these eye drops will work to relieve or prevent allergic symptoms.
Artificial tears are also an excellent option to relieve dry eye symptoms caused by allergens. These eye drops are specially formulated to imitate the tears that the allergic reaction has dried up. Artificial tears are mostly by prescription and have proven to perform better in some cases than over the counter eye drops.