What condition is characterized by inflammation of the tiny oil glands of the inner eyelid?

The condition characterized by inflammation of the tiny oil glands of the inner eyelid is blepharitis. This inflammatory condition involves the sebaceous glands located at the base of the eyelashes, leading to symptoms such as redness, swelling, and crusting along the eyelid margins. It can result from various factors, including skin conditions, bacteria, or dysfunction of the oil glands.

Hordelum, more commonly known as a stye, refers specifically to an infection of the glands at the edge of the eyelid, which is distinct from the generalized inflammation seen in blepharitis. A chalazion is a blockage of the meibomian glands that can occur after a stye, resulting in a painless lump rather than the widespread inflammation characteristic of blepharitis. Avascular necrosis pertains to bone tissue death due to lack of blood supply and is unrelated to eyelid conditions. Therefore, the defining features and implications of blepharitis make it the correct identification for inflammation of the oil glands on the inner eyelid.