Dry Eye

What is Dry Eye Syndrome?

Dry eye syndrome occurs when the eyes don't produce enough tears to stay moist or when tears don't perform their function properly. This can make your eyes uncomfortable and, in some cases, can also cause vision problems.

Dry eye is common and affects millions of people worldwide each year. The good news is that if you have dry eye syndrome, there are many things you can do to keep your eyes healthy and free of discomfort.

Dry eye types are classified into two broad groups: water-deficient and evaporative.

Water-deficient dry eye

The eye doesn't produce the right amount of tears.

It can be due to Sjögren's syndrome, either primary or secondary.

Evaporative dry eye

Tears evaporate too quickly.

This is due to a change in the tear film's lipid layer.

It can be due to meibomian gland disease, psoriasis, rosacea, or seborrheic dermatitis.

The most common type of dry eye is mixed, in which the patient has a deficiency in both the aqueous and lipid layers.