What is a Meibomian cyst also known as?

A Meibomian cyst is commonly known as a chalazion. This condition arises from the blockage of the Meibomian glands, which are located along the rim of the eyelids and are responsible for producing the lipid layer of the tear film. When these glands become obstructed, the fluid they produce accumulates, leading to a painless, localized swelling that manifests as a cyst on the eyelid.

In contrast, a stye, often painful, results from an infection of the eyelash follicle or a Meibomian gland, causing redness and swelling on the lid. Pinguecula is a yellowish change on the conjunctiva due to fat and protein deposits and is not a cyst. Conjunctivitis refers to the inflammation of the conjunctiva, commonly known as pink eye, which is unrelated to the cystic formation associated with a chalazion. Understanding these distinctions is crucial for proper diagnosis and treatment in ocular conditions.