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

Chalazion surgery removes a small red bump that develops on the eyelid. The bump, chalazion, occurs when oil glands in the eyelid become blocked. Though a chalazion usually heals with medical care ...

A pimple on your eyelid usually isn't acne — it's probably a stye, chalazion, or xanthelasma. A stye is a round, red bump that can be treated with a warm compress to drain the pus. A chalazion ...