This is a procedure performed for the treatment of excessive tearing (Epiphora)
The commonest cause is blockage of the nasolacrimal duct ie the passage connecting the eye to the nose.
If the block is after the lacrimal (tear) sac, an endoscopic dacryocystorhinostomy surgery can be done to bye pass the block.
This will avoid the traditional external incision and surgery.
Hospital stay, & recovery