Which physical findings are characteristic of the anterior variant of adult blepharitis?

Updated: Jan 03, 2019
  • Author: R Scott Lowery, MD; Chief Editor: Andrew A Dahl, MD, FACS  more...
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Answer

The anterior variant of blepharitis involves mainly the lashes and associated non-meibomian oil glands. Various formations of debris adhere to the lashes.

  • Crusting refers to flakes of material that adhere to the lashes and usually represents seborrheic disease. The epithelial material is often referred to as scurf.
  • A collarette is an irregular ringlike formation around the lash shaft that occurs with staphylococcal disease. Staphylococcal blepharitis is typified by the formation of collarettes on the lashes.
  • A sleeve is a smooth tube of material that also surrounds the base of the lash as it intersects the lid. Sleeving is associated with infection by the eyelash parasite, Demodex.
  • Ulcers form at the base of the lashes. They are covered by a crust of fibrin, which is lifted up as the lash shaft grows.
  • Seborrheic blepharitis also involves primarily the anterior lid and is associated with the formation of greasy crusts of material, which are adherent to the eyelash shaft.

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