Microsurgery of lacrimal sac.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D003607:Dacryocystitis / Q000601:surgery; D003608:Dacryocystorhinostomy; D005260:Female; D006801:Humans; D007765:Lacrimal Apparatus / Q000601:surgery; D008297:Male; D008722:Methods; D008866:Microsurgery; D008875:Middle Aged; D009666:Nose / Q000601:surgery