The Tear Film and Ocular Surface Society’s Meibomian Gland Workshop was tasked to sort through the literature to determine proper terminology of conditions affecting the lid margin. Review the terminology, gland anatomy, gland expression classifications, and treatment strategies.
While many eyecare practitioners (ECPs) are just now learning about Demodex infestation of the eyelids and adnexa, the fact is that this condition has been around for as long as mankind. The entomologists Johannsen and Riley from Cornell University first described the species in detail anatomically as early as 1915, but it wasn’t until the 1960s that clinical reports of demodex-related blepharitis began to emerge in the literature.
Research suggests colonization of demodex relates to immune activation of the skin, and certain individuals show genetic predisposition to rosacea. Greater disease understanding may offer insight into therapeutic approaches.
Though there is scant research to guide treatment, tea tree oil shampoo might successfully improve some cases of blepharitis, according to two physicians at the Eye Unit, Southampton General Hospital, Southampton, United Kingdom.