Blepharitis classification
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Sara Mehrsefat, M.D. [2]
Overview
Blepharitis may be classified according to the anatomic location of the disease into 2 subtypes: anterior and posterior. Additionally blepharitis may be classified based on the duration of symptoms into acute or chronic.
Classification
Based on the anatomic location, blepharitis may be classified into 2 subtypes: anterior and posterior
Anterior blepharitis affects the front of the eyelids near the base of the eyelashes, eyelid skin, and the eyelash follicles. Anterior blepharitis may be classified into:
- Staphylococcal blepharitis
- Seborrheic blepharitis
Posterior blepharitis affects the back of the eyelids. It involves tarsal plate, meibomian glands, and gland orifices.
Blepharitis,may be classified based on the duration of symptoms into:
- Chronic (Most often blepharitis is a waxing and waning chronic condition)
- Acute (usually allergen or irritant exposure)