抄録
There are two methods for the dacryocystorhinostomy one is an intranasaldacryocystorhinostomy and the other is a dacryocystorhinostomy from outside of the face. For the cosmetic reason, the intranasal operation is have an advantage. However, it is sometimes difficult to find outlacrimal sac from the nose.
We used the image-guided navigation system for dacryocystorhinostomy.
This system was very useful when we find lacrimal sac from nose.
