Blepharitis classification
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [2] Associate Editor(s)-in-Chief: Sara Mehrsefat, M.D. [3]
Overview
Blepharitis may be classified according to the anatomic location of the disease into 2 subtypes: anterior and posterior.
Classification
Based on the anatomic location, blepharitis may be classified into:
- Anterior blepharitis affects the front of the eyelids near the base of the eyelashes, eyelid skin, and the eyelash follicles. Anterior blepharitis tarditionally may be classified into:
- Staphylococcal blepharitis
- Seborrheic blepharitis
- Posterior blepharitis affects the back of the eyelids, the part that makes contact with the eyes include meibomian glands and gland orifices. This is caused by the oil glands present in this region. It is by far, the most common type of blepharitis.
Staphylococcal Blepharitis
Staphlycoccal blepharitis is a type of external eye inflammation. As with dandruff, it is usually asymptomatic until the disease progresses. As it progresses, the sufferer begins to notice a foreign body sensation, matting of the lashes, and burning. Usually, the primary care physician will prescribe topical antibiotics for staphylococcal blepharitis. Unfortunately this is not an effective treatment.
This ailment can sometimes lead to a chalazion or a stye.[1]
Seborrheic Blepharitis
Seborrheic blepharitis, the most common type of blepharitis, is usually one part of the spectrum of seborrheic dermatitisseborrhea which involves the scalp, lashes, eyebrows, nasolabial folds and ears.
Posterior Blepharitis or Rosacea Associated Blepharitis
The most common type of blepharitis is often found in people with a rosacea skin type. The oil glands in the lid (meibomian glands) secrete a modified oil which leads to inflammation at the gland openings which are found at the edge of the lid.