The primary causes of a chalazion are obstruction of the oil glands (meibomian glands ... Blepharitis does not cause a lump on the eyelid. However, blepharitis can increase your risk of getting ...

A chalazion is a swollen, pain-free lump on the eyelid. It gradually forms when the meibomian gland, a sebaceous (oil) gland, is blocked. A chalazion is sometimes called an eyelid cyst or a ...

Meibomian gland dysfunction (MGD ... in MGD based on more recent findings from mouse models. In these studies, eyelids from normal young and old mice or mice exposed to desiccating stress were ...

painful lump or bump on the edge of the eyelid. It occurs when the oil glands at the base of the eyelashes (called Meibomian or Zeis glands) become infected, often due to Staphylococcus bacteria.

They contain two different types of glands (sebaceous & meibomian), which secrete ... or chalazion (a small painless lump that forms on the eyelid). There are basically two types of blepharitis ...