What Causes Dry Eye?
Dry eye can result due to a number of factors, including genetics, environment, the natural aging process, or prescription medications, to name a few. Dry eye syndrome is most often caused by a condition called meibomian gland dysfunction (MGD), a blockage of the tiny oil-secreting glands that line the upper and lower eyelids. Other conditions that may cause DES include blepharitis, diabetes, Sjogren’s syndrome, thyroid disease and certain autoimmune disorders.
Hormonal changes are another common cause of dry eye. In fact, women who are pregnant, breastfeeding, taking oral contraceptives, or experiencing menopause tend to experience the uncomfortable symptoms that accompany dry eye syndrome. Women over the age of 50 have double the risk of developing DES than men of the same age.
Where you live also plays a role. Dry, windy climates that strip the eyes of their natural moisture, and indoor heating systems can cause tears to evaporate prematurely. If you suffer from seasonal allergies, you also may experience dry eyes along with your other symptoms.