Eyelid cyst removal surgery may damage the glands responsible for maintaining your tear film, aka the Meibomian glands. This is one reason why your eye doctor may wait to see if the chalazion goes away on its own before taking a surgical approach.
The surgery is a relatively quick and safe procedure, though. Just make sure to follow your eye doctor’s aftercare instructions to avoid any complications.
Please notice that there is also the risk of infection or recurrent chalazion.