What's the way through Caldwell-Luke?

Extranasal approach. In endoscopic sinus surgery, the extranasal approach is called Caldwell Luke approach. Endoscopic sinus surgery is the first choice to treat sinus diseases. Under the vision of nasal Kagami Akira, it is a minimally invasive surgery to completely remove all sinus diseases, fully open the ostium of sinus, improve the ventilation and drainage function of sinus, and keep the function as much as possible.