2024年1月8日 · What is a chalazion? A chalazion is a red bump on your eyelid. It’s sometimes called an eyelid cyst or a meibomian cyst. It slowly forms when an oil gland (called a meibomian gland) becomes blocked. At first, the chalazion may be painful, but after a …

A chalazion (/ k ə ˈ l eɪ z i ə n /; plural chalazia or chalazions) or meibomian cyst [4] is not a cyst but a granuloma [5] in the eyelid that results from a blocked meibomian gland. [6] [7] It typically occurs in the middle of the eyelid, red, and not painful. [2] They tend to come on gradually over a …

2025年1月10日 · How Does a Chalazion Look? An Eyelid Bump That's Not a Sty. 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 cyst. A chalazion might be painful at first, but the pain will subside quickly.

2023年2月16日 · A chalazion is a small, usually painless, lump or swelling that appears on your eyelid. A blocked meibomian or oil gland causes this condition, which is sometimes known as a meibomian cyst....

Internal Hordeolum: When a Meibomian gland cyst (chalazion) becomes inflamed and points posteriorly to the tarsal conjunctiva or erodes through the tarsal conjunctiva, the lesion is often termed an “internal hordeolum”.

2022年6月13日 · A chalazion, or meibomian cyst, is a focus of granulomatous inflammation in the eyelid arising from a blocked meibomian gland (or tarsal gland). Meibomian glands are modified sebaceous glands located in the tarsal plates of the upper and lower lids.

2024年9月4日 · A chalazion is a small (2-8 mm) swelling in the eyelid. It arises due to inflammation causing a reaction known as a "granuloma" - this is a swelling filled with white blood cells and other tissue. It is common and sometimes called a meibomian cyst or tarsal cyst. A chalazion is more common on the upper eyelid.

2023年1月7日 · Also called meibomian cysts, they form when oil glands inside the eyelid called meibomian glands become clogged. Most are painless, but they can grow to be pea-sized and last for several weeks. Some chalazia can grow large enough to disturb vision. A chalazion (kah-LAY-zee-on or shah-LAY-zee-on) looks like a lump or bump under the eyelid.

A chalazion, also known as a Meibomian cyst, is a common condition of the eyelid caused by blockage of the openings of the oil-producing Meibomian glands. It is usually felt as a small firm lump in the upper or lower eyelid.

2024年1月16日 · Medical treatments may be necessary in some cases. A chalazion can develop when a meibomian gland at the edge of an eyelid becomes blocked or inflamed. These glands produce oil that lubricates...