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Quantification of choroidal blood-flow parameters using indocyanine green video-fluorescence angiography and statistical picture analysis

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Abstract

A method for indocyanine green video-fluorescence angiography of the human choroid is described using a 30° fundus camera (C. Zeiss) with external light supply, a low-light-level TV camera, and a video recorder. Blood-flow parameters for the choroid were obtained from the video recording using a picture-analysis system (IBAS, Kontron). These included: the mean time for arterial, capillary and venous filling and a parameter corresponding to the amount of perfused capillaries in the choroid. Angiograms were performed on normal, healthy subjects at normal and increased intraocular pressures and on patients with dry senile macular degeneration. Examples of the results are shown and discussed.

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Author information

Correspondence to C. Prünte.

Additional information

This work was supported in part by the Deutsche Forschungsgemeinschaft and the Schweizerischer Fonds zur Verhütung und Bekämpfung der Blindheit

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Prünte, C., Niesel, P. Quantification of choroidal blood-flow parameters using indocyanine green video-fluorescence angiography and statistical picture analysis. Graefe's Arch Clin Exp Ophthalmol 226, 55–58 (1988). https://doi.org/10.1007/BF02172719

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Keywords

  • Public Health
  • Healthy Subject
  • Intraocular Pressure
  • Video Recorder
  • Macular Degeneration