Causes and Risk Factors
Dry eye and blepharitis can be caused by a range of factors affecting the tear film, eyelids or ocular surface. These may include:
- Meibomian gland dysfunction or eyelid inflammation
- Age-related tear film changes
- Screen use, reduced blinking or prolonged close-up work
- Contact lens wear, certain medications or other eye conditions
- Environmental factors such as wind, air conditioning or dry air