Dry eye is caused by a lack of tears, which are necessary for the normal lubrication of eyes and to wash away particles and foreign bodies. Some people just don’t produce enough tears for healthy eyes, resulting in dry eye. In other people, the tears evaporate too quickly due to the fact that tear composition is not properly balanced. Women, particularly after menopause, are particularly likely to experience dry eye. People who work long hours at a computer are more likely to have dry eye, because they blink less often. Medications such as antihistamines, antidepressants and antihypertensive medications frequently make dry eye worse.