Results 41 to 50 of about 393,077 (313)

Numerical simulation of sound propagation in and around ducts using thin boundary elements [PDF]

open access: yesJ. Sound Vibr. 534 (2022), 117050, 2022
Investigating the sound field in and around ducts is an important topic in acoustics, e.g. when simulating musical instruments or the human vocal tract. In this paper a method that is based on the boundary element method in 3D combined with a formulation for infinitely thin elements is presented.
arxiv   +1 more source

Evaluation of Bicanalicular Nasolacrimal Duct Intubation as an Adjunct in Surgical Ectropion Correction. [PDF]

open access: yes, 2022
Background and Objectives: We aimed to analyze and compare the outcomes of conventional ectropion surgery procedures with and without concurrent bicanalicular nasolacrimal duct intubation to identify if the combination of procedures could serve as a ...
Chrysochoou, Triantafyllia   +4 more
core   +1 more source

Retained Herrick Plug. [PDF]

open access: yes, 2018
A 79-year-old female with a history of keratoconjunctivitis sicca presented with several years of epiphora of both eyes. Thirteen years earlier, intracanalicular Herrick lacrimal plugs (Lacrimedics, Eastsound, WA, USA) had been placed in both eyes to ...
Hellman, Justin B   +2 more
core   +2 more sources

Nasolacrimal duct cyst

open access: yesDefinitions, 2020
Nasolacrimal duct cyst describes a unilateral or bilateral congenital cyst of the nasolacrimal duct, which is almost always associated with dacryocystocele, presenting most commonly at birth or a few weeks of age (but rarely presenting in adulthood) as a

semanticscholar   +1 more source

Rare case of nasolacrimal duct opening into face

open access: yesIndian Journal of Plastic Surgery, 2013
Congenital anomaly of nasolacrimal duct is mostly obstructive in nature or is seen in oblique facial clefts. Nasolacrimal duct drain into the inferior meatus in the nose in a normally developed face.
Bibhuti Bhusan Nayak   +2 more
doaj   +1 more source

Study of primary endoscopic dacryocystorhinostomy without lacrimal stent [PDF]

open access: yes, 2015
OBJECTIVES/HYPOTHESIS: To evaluate the surgical outcome of primary endoscopic dacryocystorhinostomy (DCR) in nasolacrimal duct obstruction (NLDO) in our set up.
Parab, Sapna
core   +2 more sources

Endoscopic Dacryocystorhinostomy – Our Experience [PDF]

open access: yes, 2015
Objectives: The aim of this study is to present our experience with endoscopic management of chronic obstruction of the nasolacrimal duct.Matherials and methods: Retrospective analysis of the patients with chronic stenosis and obstruction of nasolacrimal
Milev, S., Tzvetkov, V., Zlatanov, Hr.
core   +2 more sources

Dacryoendoscopic recanalization of lacrimal passage obstruction/stenosis after radioiodine therapy for differentiated thyroid carcinoma

open access: yesAmerican Journal of Ophthalmology Case Reports, 2022
Purpose: Radioiodine therapy, a standard treatment for differentiated thyroid carcinomas, is associated with several adverse events including lacrimal drainage system obstruction.
Daniela Inomata   +6 more
doaj  

Nasolacrimal duct opacity on CT

open access: yesThe British Journal of Radiology, 1996
Abstract A retrospective analysis of 100 coronal sinus CT scans was performed to investigate the frequency of opacity of the nasolacrimal duct and determine if there was any correlation between the pattern of duct opacity and the presence of inflammatory sinus disease.
J. Kew, C Metreweli, W. K. Loftus
openaire   +3 more sources

Modified External Dacryocystorhinostomy in Primary Acquired Nasolacrimal Duct Obstruction [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2015
Background: Epiphora secondary to acquired nasolacrimal duct obstruction is a common ophthalmic problem in adults requiring surgical management. External dacryocystorhinostomy (DCR) is a reliable but difficult surgical technique for the treatment of ...
Hans Raj Sharma   +2 more
doaj   +1 more source

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