Blepharitis is an inflammation process affecting the eyelid margins, eyelash follicles or openings of the anteriorly-placed accessory lacrimal glands and the posteriorly-placed Meibomian glands that causes ocular irritation and redness acutely but usually chronically.
It may have periods of exacerbations and remissions.
It usually occurs in middle-aged adults but can also start in childhood.
Can affect vision by disrupting the surface of the cornea and the bulbar conjunctiva; may influence tear film composition.
American Academy of Ophthalmology Cornea/External Disease Panel. Preferred Practice Pattern Guidelines. Blepharitis - limited revision. AAO. www.aao.org/ppp. 2011.
American Academy of Ophthalmology Cornea/External Disease Panel. Preferred Practice Pattern® Guidelines. Blepharitis. AAO. http://www.aao.org/preferred-practice-pattern/blepharitis-ppp.
American Optometric Association Original Consensus Panel. Optometric clinical practice guideline. Care of the patient with ocular surface disorders. American Optometric Association. St. Louis, MO; 2011.
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Ganatra J, Goldstein M. Blepharitis. In: Yanoff M, Duker JS, et al. Ophthalmology. 3rd ed: Mosby, an imprint of Elsevier; 2009.
Shtein RM. Blepharitis. UpToDate. http://uptodate.com. 2015 Mar.
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