BLEPHARITIS

This is a common, long-term condition that involves inflammation of the eyelids. It can affect people of all ages, but it is more common in older people. There are two main types, which can co-exist:

• Anterior blepharitis: this affects the eyelids at the base of the eyelashes. It may be caused by an infection, allergy or a general sensitivity to bacteria present on the eyelids. It can also be associated with some scalp conditions, such as very dry or oily skin and dandruff.
• Posterior blepharitis: this is also known as Meibomian Gland Dysfunction (MGD) and mainly affects the oil glands on the eyelids. It is often associated with rosacea (a skin disease causing redness of the face).