Infection of what is called stye-
*Acute infection of Zeis gland -> Style. *Acute infection of tarsal gland -> Hardoleum internum *Chronic infection of tarsal gland -> Chalazion. Ref: Khurana 7th/e p.383
Hair follicles
Tarsal gland
Conjunctiva
Zeis glands
Diseases of orbit, Lids and lacrimal apparatus