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Blepharitis is the generic name for a common condition affecting the eyelids. The term "blepharitis" is derived from "blepharon" (Greek for eyelids) and "itis" which refers to an inflammatory condition. Approximately half of all patients presenting for an eyetest have been found to suffer various degrees of blepharitis.
Blepharitis may be grouped into two main sub-types - anterior and posterior. Anterior blepharitis may further be classified into bacterial, seborrhoeic and parasitic. Anterior blepharitis affects the outside front of the eyelid, where the eyelashes are attached. Posterior blepharitis affects the meibomian glands which are found in the inner eyelid (the moist part that makes contact with the eye)
