Lacrimal sac surgery is a procedure used to treat blockages or infections of the lacrimal sac, which is part of the tear drainage system in the eye. The lacrimal sac collects tears from the eye before they drain into the nose. When this system is blocked, it can lead to excessive tearing or chronic eye infections.

Surgical options for lacrimal sac surgery include dacryocystorhinostomy (DCR), where an opening is created between the lacrimal sac and the nasal cavity to bypass the blockage. This surgery can be performed using traditional surgical methods or endoscopic techniques.

Lacrimal sac surgery can significantly reduce tearing, alleviate discomfort, and improve the function of the tear drainage system.