[Significance of transcanalicular laser assisted dacryocystorhinostomy in modern lacrimal drainage surgery].

For the treatment of postsaccal lacrimal drainage obstructions transcanalicular laser dacryocystorhinostomy (TCL-DCR) represents a less invasive alternative to external Toti procedures. Herein, a diode laser optical fiber is inserted into the lacrimal sac via the canaliculi. Under visual control with a nasal endoscope laser energy is applied until a patent osteotomy between the sac and nasal mucosa has been created. Published success rates of 70-90% get close to the excellent results of Toti procedures. Besides describing therapy planning and surgical technique, pros and cons of TCL-DCR are discussed.