Is It A Stye Or Chalazia? Important Facts You Should Know

Chalazia Are Caused By Blockages of Meibomian Glands

When meibomian glands become blocked, chalazia tend to be the result. This is extremely common with those who have Meibomian Gland Dysfunction (MGD). Each eye has its own two sets of meibomian glands. The lower lid has between twenty and thirty of these glands while the upper lid has about twenty-five to forty of them. When a blockage occurs in any of these glands (and it can often occur simultaneously in multiple glands), they are rendered unable to secrete a sufficient amount of oil into the tears, thereby leading to dryness in the eyes. The older an individual gets, the more likely they are to experience chalazia as the result of blockages to the meibomian glands.