What Are the Causes of Watery Eyes?
Watery eyes occur when there is excess secretion of tears in the eyes. We all know dust, smoke and smog all irritate the eyes and cause the eye to water, and we try to wash it away. But it also important to know what is normal and when you should consult a professional.
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Causes
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The most common cause of watery eyes is dry eyes. The eye produces tears, which help to lubricate the eye as well as wash away irritants. The second major cause is allergies. Other causes for watery eyes are hot foods such as hot chili peppers, blockage of the tear ducts, infection, ingrown eyelashes and irritants such as smoke, smog, wind, dust and pollen. Even pain, sleepiness, yawning, vomiting and laughing can cause the eyes to tear. "Excessive tears are part of a nervous system reflex triggered by various assaults to the body," says Christopher Rapuano, M.D., assistant professor of ophthalmology at Thomas Jefferson University Hospital in Philadelphia.
Concerns
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Watery eyes combined with redness and itching can be a sign of allergy. Blepharitis is an infection of the eyelashes, while conjunctivitis is an infection of the eyelids. Infections in the eye are usually accompanied with swelling and a mucus-type discharge as well as redness. Foreign bodies or injuries are also causes for concern.
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Relieving Symptoms
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Over-the-counter antihistamines work well for tearing caused by allergies and pollen; an artificial tear product helps with dry eyes and even when using an antihistamine since that has a tendency to dry the eyes. In windy or smoggy conditions, "wrap around" sunglasses help keep the dust and debris out of the eyes. An over-the-counter eye wash helps as well.
Contact Lenses
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Wearing contact lenses can also cause excessive tearing. Some reasons are poor fit, scratched or damaged lens, or something trapped between the eye and the lens. If removing and cleaning the lens, along with washing the eye does not resolve the problem, it is recommended that you remove the lenses and consult your eye doctor. In high-pollen, smoggy or dusty conditions, try switching from the lenses to glasses to lessen the symptoms.
Injury and Infection
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A hit directly to the eye or a blow to the side of the head can cause the eye to tear, even swell and turn red. Swelling, redness or discharge can be a sign of infection. Any symptom caused by injury, infection or lasting more than two days should be seen by a doctor for a correct diagnosis. Most can be treated with antihistamines, antibiotic, a change in corrective lenses or a simple eye wash.
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