Dry eye syndrome is generally due to a Meibomian gland dysfunction, also called Blepharitis. This results in the important oil layer of our tears being unstable and thinner than it should normally be. This leads to dryness, irritation, redness and blurred vision.
It is often caused by the conditions of the modern life (computer screens, driving cars, artificial lights, pollution, eye contact lenses etc.) however other risk factors include:
- Normal age-related reduction in the production of tears.
- Hormonal changes - particularly in the production of the female hormone oestrogen.
- Heavily air-conditioned environments.
- Windy, dusty, smoky, hot or dry weather conditions
- Eye injury/ burns.
- Fans or hair dryers blowing directly onto the face.