A chalazion is a harmless cyst caused by a blocked meibomian gland in the eyelid. Meibomian glands in theeyelid produce an oil which helps keep the eye moist. If the gland becomes blocked, the oil builds up into a cyst which looks like a small lump in the eyelid. The lump can become irritated and red and, occasionally, infected.
Lid cysts are common, especially in children. If children develop cysts repeatedly, they could have blepharitis, a long-term mild irritation of the edge of the eyelids, which is usually harmless but occasionally affects the eye.
Most cysts disappear with time but can take weeks and sometimes many months, to go. They are normally harmless and can be safely left to get better with time in most cases.
Warm compresses might speed up the disappearance of the cyst. Use clean cotton wool or a clean flannel soaked in very warm water (be sure it’s not hot enough to burn). Squeeze out excess water and place the flannel or cotton wool on your child’s closed eyelids over the cyst for two minutes at a time twice daily.
Occasionally, the doctor will prescribe a short course of antibiotic ointment or drops to help any irritation and, if there is infection spreading from the cyst, will prescribe antibiotics by mouth. However, medication does not cause the cysts to disappear.
If there is a large cyst which remains for a long time, it is possible to perform surgery to remove it. In most cases, surgery is not medically necessary but can be done to speed up healing of the cyst. However, surgery is often not recommended because:
If the cyst has been there a long time and you would like your child to be considered for surgery, please ask your GP to refer your child to the clinic.
The Richard Desmond Children's Eye Centre is our dedicated children's hospital. It is based on the same campus as the main hospital in London's City Road, but has a separate entrance in Peerless Street.
Richard Desmond Children's Eye Centre, Moorfields Eye Hospital.
3 Peerless Street
London
EC1V 9EZ
Opening hours: 9am - 4pm, Monday to Friday.
Outside of these hours, please attend the adult A&E department at Moorfields City Road (around the corner).
Author: Paediatric information group
Review date: January 2020