<prompt> Hardoleum internum is ?Acute infection of Zeis glandAcute infection of Moll glandAcute infection Meibomian glandChronic infection of Zeis gland  <response>: . Ans. is c i.e., Acute infection Meibomian gland Acute infection of Zeis Moll gland - Stye Hardoleum externum. Acute infection of tarsal gland Meibomian gland - Hardoleum internum o Chronic infection of tarsal gland Meihonium gland - Chalazion Differences between stye Hordeolum externum, chalazion and Hordeolum internum Stye Hordeolum externum Chalazion Hordeolum internum Onset Acute Chronic Acute Gland Zeiss gland Meibomian gland Meibomian gland Types of inflammation Suppurative Lipogranulomatous Suppurative Symptoms Acute pain and swelling Painless disfigurement Severe pain Signs Localized, hard and tender Hard nontender swelling Yellow point seen on swelling near the lid margin away from lid margin eveing the lid Treatment Hot fomentation, Antibiotics Drainage by incision Incision and drainage and removal of eye lash and curettage Intralesional steroid Diathermy, antibiotic Antibiotics and analgesic 