Blepharokeratoconjunctivitis is the combination of conjunctivitis with blepharitis and keratitis. Seborrheic blepharitis is distinguished by less erythema, edema, and telangiectasia of the eyelid margins. Blepharoconjunctivitis is the dual combination of conjunctivitis with blepharitis (inflammation of the eyelids). Symptoms and signs of blepharitis are often erroneously ascribed by the patient as "recurrent conjunctivitis". Staphylococcal blepharitis is diagnosed by examining erythema and edema of the eyelid margin. It also has anti-inflammatory properties when used to treat blepharitis or conjunctivitis (in eye-drop solution). Posterior blepharitis is an inflammation of the eyelids, secondary to dysfunction of the meibomian glands. Routine washing of the eyelids helps subdue symptoms and prevent blepharitis. Although blepharitis is not sight-threatening, it can lead to permanent alterations of the eyelid margin. Staphylococcal blepharitis may start in childhood and continue into adulthood. High numbers of "D. folliculorum" are associated with blepharitis and acne rosacea. Chronic bacterial blepharitis may also lead to ectropion. When suffering from blepharitis, antibiotics are used to combat the bacterial infection. It is used in eye hygiene to treat blepharitis. Lacritin monomer deficiency in tears of patients with blepharitis was also reported.