Dry eyes are caused by a lack of tears. Tears are necessary for the normal lubrication of your eyes and to wash away particles and foreign bodies. Common causes of dry eyes include a) Aging b) Dry environment or workplace (wind, air conditioning) c) Over exposure to sun. d) Smoking or second-hand smoke exposure e) Cold or allergy
medicines f) an eye injury
or other problem with your eyes or eyelids (like a drooping eyelid or bulging eyes) g) Sjogrens syndrome -- includes dry eyes, mouth, and mucus membranes, and often rheumatoid arthritis
or other joint disorder. The following steps may help 1) Try artificial tears
, available as either drops or ointment. Ointments
last longer, but are thicker and can cause blurry vision. 2) Don't smoke. Avoid second-hand smoke, direct wind, and air conditioning. 3) Use a humidifier, especially in the winter. 4) Purposefully blink more often. Rest your eyes.