April 2009
Volume 50, Issue 13
Free
ARVO Annual Meeting Abstract  |   April 2009
Evaluation of the Retinal Vessels in Branch Retinal Vein Occlusion Using Scanning Laser Ophthalmoscopy
Author Affiliations & Notes
  • S. Ishiko
    Ophthalmology, Asahikawa Medical College, Asahikawa, Japan
  • A. Yoshida
    Ophthalmology, Asahikawa Medical College, Asahikawa, Japan
  • T. Nagaoka
    Ophthalmology, Asahikawa Medical College, Asahikawa, Japan
  • Y. Kato
    Ophthalmology, Asahikawa Medical College, Asahikawa, Japan
  • H. Kagokawa
    Ophthalmology, Asahikawa Medical College, Asahikawa, Japan
  • A. Takamiya
    Ophthalmology, Asahikawa Medical College, Asahikawa, Japan
  • M. Kawai
    Ophthalmology, Asahikawa Medical College, Asahikawa, Japan
  • K. Fukui
    Ophthalmology, Asahikawa Medical College, Asahikawa, Japan
  • F. Van de Velde
    SERI / Harvard Medical School, Boston, Massachusetts
    Ophthalmology, University of Antwerp, Antwerp, Belgium
  • Footnotes
    Commercial Relationships  S. Ishiko, Nidek, Inc, F; A. Yoshida, None; T. Nagaoka, None; Y. Kato, None; H. Kagokawa, None; A. Takamiya, None; M. Kawai, None; K. Fukui, None; F. Van de Velde, Nidek, Inc, C.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science April 2009, Vol.50, 5278. doi:
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    • Get Citation

      S. Ishiko, A. Yoshida, T. Nagaoka, Y. Kato, H. Kagokawa, A. Takamiya, M. Kawai, K. Fukui, F. Van de Velde; Evaluation of the Retinal Vessels in Branch Retinal Vein Occlusion Using Scanning Laser Ophthalmoscopy. Invest. Ophthalmol. Vis. Sci. 2009;50(13):5278.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose: : To determine the usefulness of a noninvasive evaluation of the retinal vessels in branch retinal vein occlusion (BRVO) using scanning laser ophthalmoscopy (SLO).

Methods: : Fundus examination, fluorescein angiography (FA), and noninvasive SLO monochromatic imaging were performed. SLO findings were observed using a digital ophthalmoscope (F-10, Nidek, Japan) equipped with a confocal aperture and two wavelengths blue laser (490 nm) and green laser (532 nm).

Results: : Retinal vessels, microaneurysms, and hemorrhages were observed clearly with high contrast using the green laser, which was superior to the fundus color photograph. In acute BRVO, the occluded vessels were visibly enhanced as bright white and had a thicker diameter using the blue laser, although the vessel still appeared red and thinner in the color photograph. Peripheral vessels that were visibly enhanced as bright white using the blue laser were observed around the area of nonperfusion by FA. Occluded vessels were seen as a white line in chronic BRVO, which was the same as the visualized vessels using the blue laser in the acute phase.

Conclusions: : Using the confocal aperture and the shorter wavelength lasers in the SLO, we clearly and noninvasively observed morphologically enhanced changes in normal and damaged vessels. Because this method provides information about damaged vessels, it would be valuable for evaluating BRVO.

Keywords: imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound) • vascular occlusion/vascular occlusive disease • clinical (human) or epidemiologic studies: systems/equipment/techniques 
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