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Longterm observation of conjunctival hemodynamics in a case of carotid cavernous fistula by laser speckle flowgraphy Miki Kosaka 1 , Ken Nagaya 1 , Hiroshi Takahashi 1 , Shinobu Akiya 1 1Dept of Ophthalmol, Sch of Med, Univ of Occupational and Environmental Health, Japan pp.469-472
Published Date 1998/4/15
DOI https://doi.org/10.11477/mf.1410905786
  • Abstract
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A 76-year-old woman developed carotid cavernous fistula (CCF). Embolization of CCF induced disappearance of conjunctival congestion in her right eye. We quantitated the conjunctival blood flow using a laser speckle flowmeter using the square blur rate (SBR) as parameter. There was no difference in SBR value between both eyes. After relapse of CCF 3 months later, the SBR increased to 700% of the former value. Retreatment of CCF by embolization failed to influence the clinical features and SBR value. Radiation to CCF decreased the SBR value to the initial level. Throughout the course of observation, the SBR values were positively correlated to the severity of conjunctival congestion and intraocular pressure. This case illustrates the usefulness of SBR value by laser speckle flowmetry as parameter of blood flow rate in the conjunctiva.


Copyright © 1998, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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