Oh yes, it is officially springtime in Cincinnati and with that that comes the dreaded start of allergy season. It comes around every year like clockwork and brings all kinds of uncomfortable symptoms that make it difficult to enjoy the change in weather and time outdoors. Most are aware that seasonal allergies cause symptoms like a runny nose or sneezing, but the eyes can also be affected. Today, I would like to specifically review ocular (eye) allergies, the symptoms you should expect, and the best way to manage the condition.
What causes eye allergies? Eye allergies are caused by an immune reaction to an offending agent. Your body’s defense mechanism is to release histamine, which is a chemical that causes swelling and inflammation. The most common triggers for many of us include tree, grass, and ragweed pollen. Common indoor allergens include mold, dust mites, and animal dander.
How can I tell if I have eye allergies?
There are three common symptoms associated with ocular allergies: itching, redness, and watering.
Itching is the most common of the three symptoms and is an important differentiating factor. The location of the itching sensation is very important
in ruling out other conditions with similar symptoms, such as blepharitis and possibly an infection.
With eye allergies, you’ll usually notice itching toward the corner of the eyes where stagnant tears filled with allergens and allergic mediators have collected. With blepharitis, you’ll notice itching along the eyelid.
What not to do for eye allergies
With treatment of ocular allergies, one of the biggest issues I see as an optometrist is the use of over the counter red eye solutions that neither address the problem nor relieve the symptoms. Visine and similar drops contain drugs that work by shrinking the blood vessels in the white part of the eye.
Prolonged use of these types of drops can cause those vessels to permanently enlarge, which can make your redness even worse. Use of these drops is not recommended for chronic use, especially for the treatment of eye allergies.