Age

•  - Environment
•  - Inflammation
•  - Blepharitis
•  * Age
•  - Evaporation
•  - Hormonal flux
•  - Denervation
•  - Contact lenses
•  - Menopause
•  - LASIK
•  - Autoimmune
•  - Basement Membrane Dystrophy

Age: Tear production gradually decreases with aging and at some point this could induce dry eye symptoms. The exact mechanism is unclear and may relate to other factors described herein.