نتایج جستجو برای: lacrimal duct obstructions
تعداد نتایج: 40801 فیلتر نتایج به سال:
1. A mucocele of the lacrimal sac, or 2. Chronic dacryocystitis or conjunctivitis due to lacrimal sac obstruction, or 3. Congenital nasolacrimal duct obstruction that cannot be cured by probing (members should be over 1 year of age), or 4. Epiphora (excessive tearing) due to acquired obstruction within the nasolacrimal sac and duct, or 5. Lacrimal sac infection that must be relieved before intr...
BACKGROUND/AIM Until recently, diagnosis of disorders of the lacrimal system has depended on digital dacryocystography and on clinical examinations such as the fluorescein dye test, lacrimal probing, and irrigation. The lacrimal system and its mucous membranes can now be viewed directly with a lacrimal endoscope. While the first endoscopes were rigid and limited by poor picture quality in axial...
introduction: this study was done to determine the site of obstruction in lacrimal drainage system in asian patients suffering from epiphora and to determine the transit time taken for the tracer material to reach the lacrimal sac and the nasal cavity. methods:dacryoscintigraphy was performed using radionuclide technetium-99m pertechnetate (99mtc) in 34 patients suffering from unilateral or bil...
purpose: to report a case of free floating pyogenic granuloma within the lacrimal sac. case report: a 13 month old infant with unresolving dacryocystitis and history of two times failed probing and once failed turbinate fracture was scheduled for dacryocystorhinostomy (dcr). a free floating red mass was removed from the sac. histopathologic examination confirmed a diagnosis of pyogenic granulom...
PURPOSE To evaluate the nasolacrimal duct reconstitution with radio frequency for restoration of lacrimal flow in cases of nasolacrimal duct obstruction. METHODS The procedure was carried out in 16 eyes of 16 patients (13 women and 3 men) by the same surgeon, with monopolar high-frequency device at 450 kHz and 150 W, with local anesthesia under sedation. Inclusion criteria were lower lacrimal...
External dacryocystorhinostomy (DCR) is the gold standard surgical technique for the treatment of nasolacrimal duct obstruction (1). Since its introduction by Gibbs in 1967, intubation with silicone tubes has been widely used in lacrimal duct surgery (2). However, effect of silicone intubation on patency of lacrimal system during external DCR in cases of primary nasolacrimal duct obstruction (N...
[Balloon-catheter dilatation (dacrioplasty) for congenital nasolacrimal duct obstruction treatment].
PURPOSE To verify the results of balloon-catheter dilatation for the treatment of congenital lacrimal duct obstruction. To the best of author's knowledge this procedure has not been previously used in Brazil and deserves scientific studies. METHODS Children between 2 and 5 years old, with congenital lacrimal duct obstruction, were treated with balloon-catheter dilatation (Lacricath). Catheter...
In a prospective survey, 200 cases of operated chronic dacryocystitis were divided into three groups according to the kind of operation, and the respective results are as follows: Group I includes 100 cases in whom the lacrimal bone was removed (8mm x 8mm) and a 6mm diameter catheter was used (as a duct between the lacrimal sac and nasal cavity). The recurrence rate within one year was 24 ...
Lacrimal scintigraphy (LS) was performed on asymptomatic lacrimal drainage systems and the results were evaluated to understand the physiology of lacrimal drainage. It was found that a physiological obstruction can exist at the level of the nasolacrimal duct in normal asymptomatic individuals, and it is suggested that this obstruction is due to the resistance offered by the valve of Hasner, whi...
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