Caused by the same irritants as hay fever, runny nose, coughing, and sneezing, eye allergies commonly affect those who suffer from other allergy symptoms. Not only do eye allergies cause discomfort, but they can also interfere with daily activities.
Eye Allergy Causes
Medically referred to as allergic conjunctivitis, individuals who are predisposed to allergic reaction experience eye allergies when they come into contact with allergens (substances which prove harmless to others, like pollen, mold, dust, and pet dander). In addition to these allergens, some eye allergy sufferers also experience reactions to perfumes, smoke, cosmetics, insect bites/stings, foods, and the preservatives found in eye drops.
When an allergy sufferer's eyes come into contact with an allergen, his or her immune system reacts, and cells known as mast cells release histamine to try to combat the allergen. Histamine causes the symptoms associated with eye allergies.