A chalazion (pronounced ka-LAY-zee-un), also known as a meibomian cyst, is a type of fluid-filled bump on the upper or lower eyelid. Chalazia (plural of chalazion) are sometimes confused with sties.

Most chalazia (the plural of chalazion) form on the underside of the upper eyelid. While rare, they can sometimes form on the lower eyelid. Chalazia can affect anyone regardless of age ...

A chalazion can appear on the upper or lower eyelid, but they are more common on the upper lid. Although chalazia are generally painless, they can cause the eye to become watery and mildly irritated.

A chalazion is a small firm bulge in the eyelid caused by a blocked opening or infection of the oil producing glands located in the upper or lower eyelids. Chalazia are frequently associated with a ...

If your upper or lower eyelid is swollen, it could be from a chalazion or a stye. A chalazion typically causes a bump in the eyelid with localized swelling around the edge of the eyelid.

A stye usually stems from an infection in an eyelid oil gland or eyelash follicle. Stress and hormonal changes can also cause it. A chalazion happens when a tiny part of your eyelid called a ...

A chalazion is a focal inflammation of the ... It is most commonly found on the lower eyelid, followed by the medial canthus, upper eyelid and lateral canthus. Basal cell carcinoma is classically ...

If your chalazion is very large or swollen ... sag and turn “out” and away from your eyeball. Then your upper and lower eyelids can't close completely, making it hard or impossible to ...

A chalazion may start out as painless or slightly tender. It’s not usually caused by an infection but by a blockage of the oil glands of the eyelid. It’s more common in the upper eyelid than ...