Document Detail

A stereological analysis of venous nicking observed at retinal arteriovenous crossings.
MedLine Citation:
PMID:  937944     Owner:  NLM     Status:  MEDLINE    
The accepted hypotheses for the explanation of retinal venous nicking are critically reviewed and an alternative hypothesis based on a stereological analysis is presented. The ophthalmoscopic appearance of retinal venous nicking is best explained by partial collapse of the vein with the major axis of the venous cross section at right angles to the internal limiting a membrane of the venous blood flow nor of the likelihood of tributary vein occlusion. A partially collapsed vein may be very sensitive to small changes in intraocular pressure. Patients with impending tributary vein occlusion may benefit from reducing intraocular pressure.
J D Wirtschafter; B C Smiley; J F Lafferty
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Annals of ophthalmology     Volume:  8     ISSN:  0003-4886     ISO Abbreviation:  Ann Ophthalmol     Publication Date:  1976 May 
Date Detail:
Created Date:  1976-09-02     Completed Date:  1976-09-02     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0210137     Medline TA:  Ann Ophthalmol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  619-29     Citation Subset:  IM    
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MeSH Terms
Fluorescein Angiography
Intraocular Pressure
Models, Biological
Regional Blood Flow
Retinal Artery*
Retinal Diseases / diagnosis
Retinal Vein* / pathology
Thrombosis / diagnosis

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