Which of the following is the most common swelling of eyelids?

These are the most common lid swellings. A meibomian cyst is a chronic granulomatous inflammation  of a meibomian gland. It may occur on either upper or lower lids and presents as a smooth, painless  swelling. It can be felt by rolling the cyst on the tarsal plate. Key Concept: Meibomian cyst: They are epidermal cysts found on the free  edge  of  eyelid.   Chronic Meibomian cyst is called chalazion.