Rosacea is a chronic relapsing disease of the facial skin. It is characterised by recurrent episodes of facial flushing with persistent erythema, telangiectasia, papules and pustules. Ocular rosacea is usually bilateral and causes a foreign-body sensation. Ocular rosacea affects adult males and females equally, with one study reporting an average age at presentation of 56 years. It is uncommon in children and generally starts after the age of 30 years. It usually occurs in patients with existing rosacea but it can be the first sign of the disease. Ocular rosacea tends to occur in patients with facial flushing.