Causes

Drops not quite working? It may depend on your type of dry eye. See the difference between evaporative, aqueous and mixed.

Red, itchy or crusty eyelids on waking? Blepharitis and dry eye are confused and often go together. See the difference and its treatment.

The tear film is much more than «water in the eye». Understand how it works and why, when it becomes unstable, dry eye appears.

Dry eye isn’t always a lack of tears: often it’s the meibomian glands. See what MGD is, how it’s assessed and how it’s treated.