Meibomian cyst vs stye
A chalazion, or meibomian cyst, is an enlargement of an oil gland, known as the meibomian gland deep in the eyelid, as a result of an obstruction of the gland’s opening. Lipid from the obstructed gland leaks into the tissue of the eyelid resulting in inflammation and swelling or small lump on the eyelid. Although meibomian cysts are inflamed, they are usually not infected.
What are the meibomian glands?
The meibomian glands in the eyelids provide a protective oil layer to prevent the eyes from drying out.
A stye, or hordeolum, is typically an eyelash follicle that has become infected as a result of a staphylococcal infection or a result of bacteria from the skin getting into and irritating the eyelids’ oil glands leading to a swollen and painful bump. A stye can also sometimes be accompanied by blepharitis (an inflammation of the eyelid edges).
Meibomian cyst symptoms
A meibomian cyst may at first result in a swollen eyelid, irritation and mild pain. These symptoms however usually disappear after several days, leaving swelling or a small bump on the eyelid that can slowly grow for a while. The swelling can sometimes continue to grow to the extent that it presses on the eyeball and result in a slight blurring.
A stye typically starts with pain and tenderness at the eyelid’s edge, with a small red and swollen area then forming. The eye can sometimes become sensitive to bright light, and start watering with the feeling of something in the eye. Just a small area of the eyelid normally swells, but in some cases the entire eyelid is swollen. The center of the swollen area often develops a small, yellowish spot which usually forms at the eyelid’s edge. After a few days, the stye usually ruptures, and a small amount of material is released and the issue is resolved.
Symptoms, which include pain, are typically more severe with an internal hordeolum, in comparison to an external hordeolum.
Meibomian cyst treatment
Under no circumstances attempt squeezing the cyst and avoid touching it unnecessarily. Ensure your hands have been washed if you do have to touch the affected area.
Approximately a third of meibomian cysts will not require any treatment and should disappear within 2 – 8 weeks. Holding a warm compress against the cyst several times a day is an effective treatment as the heat can help soften the oil in the blocked gland and reduce the swelling. Gently massaging the lump after the warm compress application can also help speed up the healing process.
Antibiotics are usually ineffective for meibomian cysts as they aren’t a result of an infection. However, an antibiotic eye ointment can be used if the cyst becomes infected.
A minor surgical drainage procedure is available for persistent cysts which are obscuring vision, but the cyst can reform, so the usefulness of this procedure is limited. And although adults have the choice of a local anaesthetic, the procedure requires a general anaesthetic for children.
The most effective stye treatment is the application of warm compresses, which will help the stye pop open and drain. An internal stye seldom ruptures on its own accord and might need to be surgically drained. An external stye that doesn’t resolve with warm compresses might also need to be surgically drained