A chalazion is a lump inside the upper or lower eyelid. The primary cause of a chalazion is inflammation of one of the small oil-producing glands located in the upper or lower eyelid. While it may get infected later on, a chalazion is not caused by bacteria, but rather is due to oil trapped in these glands.
Usually, a chalazion disappears on its own without any treatment. In other cases, it may grow and obstruct vision. It is quite common for a chalazion to be confused with a stye, which also appears as a lump on the eyelid. There are some differences between the two, however. As a rule, a chalazion appears further from the edge of the eyelid than a stye does, and it’s not usually tender – unlike a stye. The two also have different causes. Whereas a chalazion is associated with the oil-producing glands, a style is an infection of the eyelash follicle.
A chalazion appears when there is the blockage of an oil-producing gland in the upper or lower eyelid known as meibomian gland (or tarsal gland). Some people are at a higher risk for chalazia, and the risk factors include having a prior history of chalazia and touching your eyes with dirty hands. Chalazia are also more common among individuals with rosacea and eye inflammation.
As chalazion is caused by the gland blockage, it could be associated with the following:
The most obvious sign of a chalazion is a lump on the upper or lower eyelid. Other signs and symptoms include a tender spot on the eyelid, a hard lump you have not seen before, increased tearing of the eyes, blurred or blocked vision, and sensitivity to light.
In many cases, your doctor will be able to diagnose a chalazion by simply looking at the lump on your eyelid. They will take into account your symptoms for a more accurate diagnosis. There are no specific tests for diagnosing a chalazion.
Treatment options for chalazia include medications such as eye drops or warm water compresses applied to the eye several times a day. If the chalazion does not go away or grows and blocks your vision, surgery may be required to properly drain it.
Here are some remedies you can try at home if you spot a chalazion on your eyelid: