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Perspective: what does the term functional mean in the context of epiphora?
MedLine Citation:
PMID:  22429759     Owner:  NLM     Status:  Publisher    
The term "functional block" is used to encompass the concept of lacrimal drainage dysfunction in the presence of anatomical patency. There is significant variability in the nomenclature, clinical and investigative criteria used in the literature to define this entity. This has led to confusion and lack of comparability of studies looking at this group. We describe the clinical features, investigative findings and treatment options in this group of patients. In addition, we emphasize the need to differentiate between nasolacrimal stenosis and "functional block" as evidence suggest patients with nasolacrimal duct stenosis have better outcomes with dacryocystorhinostomy. To better define the disease entity and enable comparability of future studies, we propose that this entity be replaced by the term functional epiphora with no delay, pre or post sac delay. © 2012 The Authors. Clinical and Experimental Ophthalmology © 2012 Royal Australian and New Zealand College of Ophthalmologists.
Wengonn Chan; Raman Malhotra; Hirohiko Kakizaki; Igal Leibovitch; Dinesh Selva
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-19
Journal Detail:
Title:  Clinical & experimental ophthalmology     Volume:  -     ISSN:  1442-9071     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100896531     Medline TA:  Clin Experiment Ophthalmol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 The Authors. Clinical and Experimental Ophthalmology © 2012 Royal Australian and New Zealand College of Ophthalmologists.
South Australian Institute of Ophthalmology, Royal Adelaide Hospital, Adelaide, Australia. Corneoplastic Unit, Queen Victoria Hospital, East Grinstead, United Kingdom Department of Ophthalmology, Aichi Medical University, Nagakute, Aichi 480-1195, Japan Division of Oculoplastic and Orbital Surgery, Department of Ophthalmology, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel.
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