Demodex blepharitis

Demodex blepharitis is a chronic inflammatory disorder of the eyelid margins caused by an overpopulation of microscopic ectoparasitic mites, primarily *Demodex folliculorum* within eyelash follicles and *Demodex brevis* within sebaceous and meibomian glands Defining clinical features include eyelid margin erythema, persistent pruritus, burning, foreign body sensation, and the pathognomonic presence of collarettes—waxy, cylindrical dandruff cuffing the base of the eyelashes

Demodex blepharitis is a chronic inflammatory disorder of the eyelid margins caused by an overpopulation of microscopic ectoparasitic mites, primarily *Demodex folliculorum* within eyelash follicles and *Demodex brevis* within sebaceous and meibomian glands

Demodex blepharitis is a chronic inflammatory disorder of the eyelid margins caused by an overpopulation of microscopic ectoparasitic mites, primarily *Demodex folliculorum* within eyelash follicles and *Demodex brevis* within sebaceous and meibomian glands

It affects the ocular system and commonly occurs in adults, with incidence increasing significantly with advancing age and in individuals with underlying ocular surface disease or rosacea Pathophysiologically, the mites cause direct epithelial damage, mechanical obstruction of glandular orifices, and localized immune hypersensitivity, often exacerbated by harboring symbiotic bacteria Defining clinical features include eyelid margin erythema, persistent pruritus, burning, foreign body sensation, ...

It affects the ocular system and commonly occurs in adults, with incidence increasing significantly with advancing age and in individuals with underlying ocular surface disease or rosacea

It affects the ocular system and commonly occurs in adults, with incidence increasing significantly with advancing age and in individuals with underlying ocular surface disease or rosacea

Pathophysiologically, the mites cause direct epithelial damage, mechanical obstruction of glandular orifices, and localized immune hypersensitivity, often exacerbated by harboring symbiotic bacteria

Defining clinical features include eyelid margin erythema, persistent pruritus, burning, foreign body sensation, and the pathognomonic presence of collarettes—waxy, cylindrical dandruff cuffing the base of the eyelashes