Dacryocystorhinostomy Workup
- Author: S Valentine Fernandes, MBBS, MCPS, FRCSEd, FRACS, FACS, LLB; Chief Editor: Arlen D Meyers, MD, MBA more...
Imaging Studies
Dacryocystography allows assessment of the lacrimal passage patency by radiopaque dye techniques.
CT scanning delineates anatomy and detects unrecognized disease in the paranasal sinuses and nose.
CT scanning and dacryocystography further define the anatomy of the lacrimal drainage system.
MRI and dacryocystography allow a better view in the absence of bony shadows.
Lacrimal scintigraphy using gamma camera technology allows assessment of functional tear drainage.
Other Tests
Perform a complete ophthalmologic examination, including testing of visual acuity and visual fields and slit lamp examination.
Perform nasal endoscopy to identify a possible cause for lacrimal obstruction and to assess the feasibility of endoscopic manipulation.
Diagnostic Procedures
Metal probing and irrigation of the lacrimal drainage system allows confirmation of the diagnosis.
Fluorescein dye irrigation of the lacrimal puncta and detection of the dye in the inferior meatus eliminate a diagnosis of complete blockage.
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