Causes

Itching points to allergy, burning and grittiness to dry eye. How to tell the two apart, why they often occur together and what helps.

Ocular rosacea can affect the eyelid margins and the tear film. Learn which symptoms are typical and which treatments may be considered.

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.