Nasal endoscopy in the outpatient clinic.

The introduction of the nasal endoscope has greatly advanced the diagnostic and therapeutic capability of otolaryngologists in the office setting. With continued technologic developments in endoscopic equipment and topical intranasal anesthesia, further advances are expected that undoubtedly will expand endoscopic diagnosis treatment in the office setting. Presently otolaryngologists are beginning to use endoscopes in the evaluation and treatment of nasolacrimal duct obstruction, and we are aware of one case of cerebrospinal fluid leak that has been repaired in the office setting with nasal endoscopic technique. (Lanza D: personal communication, 1991).