superficial chalazia form when glands along the edge of the eyelid become infected and blocked

chalazion ophthalmologist medical inflammation disease infection bacteria staphylococcus closeup eyelash pain patient eyelashes eyeball symptom human skin young care red face stye festering barley eye meibomian sebum medicine optician abscess gland sight hordeolosis macro sty hordeolum look vision eyelid health follicles upper blepharitis illness girl virus chalazions operating