Peter, Neena M External dacryocystorhinostomy for the treatment of epiphora in patients with patent but non-functioning lacrimal systems. [electronic resource] - The British journal of ophthalmology Feb 2010 - 233-5 p. digital Publication Type: Evaluation Study; Journal Article ISSN: 1468-2079 Standard No.: 10.1136/bjo.2008.152157 doi Subjects--Topical Terms: AdultAgedAged, 80 and overDacryocystorhinostomy--methodsFemaleFollow-Up StudiesHumansLacrimal Apparatus--diagnostic imagingLacrimal Apparatus Diseases--diagnosisMaleMiddle AgedRadiographyRadionuclide ImagingRetrospective StudiesTherapeutic IrrigationTreatment Outcome