According to WebMD, itching in the corners of the eyes is a common symptom of eye allergies, also referred to as allergic conjunctivitis. Eye allergies are reactions to pet dander, pollens, dust and chemicals. Additional symptoms include redness and irritation of the eyes, swollen eyelids, burning and sensitivity to light. Eye allergies are treated with over-the-counter eye drops and oral antihistamines.
The Mayo Clinic explains that dry eyes can cause itchiness, stinging and a burning sensation in the eyes. Individuals with dry eyes often feel like there is something in the eye and experience excessive eye watering. Dry eyes are caused by low tear production and are common in post-menopausal women, individuals over the age of 50 and laser eye surgery patients.
According to MedlinePlus, environmental factors that include pollutants and cigarette smoke can cause itchy, burning eyes. Additional causes include chlorine and seasonal allergies. Treatments for itchy eyes include cool compresses, artificial tears and antihistamine eye drops. It is important for individuals with itchy eyes to contact a health professional if the itching is accompanied by a greenish discharge, decreased vision, light sensitivity or pain, as these symptoms can signify an underlying condition, such as pink eye or bacterial infection.