Blepharitis

#Blepharitis is characterized by chronic inflammation of the eyelid, usually at the base of the eyelashes.

Symptoms include inflammation, irritation, itchiness, a burning sensation, excessive tearing, and crusting and sticking of eyelids.

The parasite, hashtag#Demodex folliculorum (D. folliculorum), causes blepharitis when the parasite is present in excessive numbers within the dermis of the eyelids. These parasites can live for approximately 15 days. The parasites (both adult and eggs) live on the hair follicle, inhabiting the sebaceous and apocrine gland of the human lid. Direct contact allows this pathogen to spread. Factors that allow this pathogen to multiply include hypervascular tissue, poor hygienic conditions, and immune deficiency. In treating Blepharitis caused by D. folliculorum, mechanical cleaning and proper hygiene are important towards decreasing the parasites numbers.

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