A chalazion is a small, painless lump that can develop on your eyelid. The lump typically develops due to a blocked meibomian gland and can appear on either the upper or lower eyelid. Chalazia are very similar to both internal and external styes and are often confused for them. Styes are infections of the meibomian gland, sweat gland, or eyelash follicle and are typically painful, where chalazia are not. However, chalazia can develop after styes.
Chalazia are caused by blockages in the meibomian glands, which produce oil for the tear film, which keeps the eyes moist. Often, inflammation and bacteria lead to blockages that cause chalazia.
Chalazia are most common in people with inflammatory conditions such as acne, rosacea, or blepharitis. Viral conjunctivitis or other infections affecting the inside of the eyelids can also lead to chalazia development.
Chalazia are typically lumps or swelling on either the upper or lower eyelid. They may affect both eyelids and can occur in both eyes at the same time. Large chalazia can blur or block vision depending on their location.
If an infection is present, you may experience redness, swelling, and pain, but this is uncommon.
If you suspect you may have a chalazion, please give us a call and we will examine your eyes. We will take a close look at the lump on your eyelid and ask about any accompanying symptoms to determine what it is and what may be causing it.
Not all lumps are chalazions!