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Acta Ophthalmol. 2010 Sep;88(6):622-9. doi: 10.1111/j.1755-3768.2009.01621.x.

Ocular blood flow assessment using continuous laser Doppler flowmetry.

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Department of Ophthalmology (Dir. Prof. Emilio Campos), University of Bologna, Italy.


This article describes the technique of continuous laser Doppler flowmetry (LDF) as applied to the measurement of the flux of red blood cells in the optic nerve head, iris and subfoveal choroid. Starting with the exposition of the physical principles underlying LDF, we first describe the various devices developed to perform LDF in these vascular beds. We then discuss the clinical protocols, blood flow parameters, calibration procedures, reproducibility and limitations of the LDF technique. Various problems still need to be solved in order to bring to light the full potential of LDF in the assessment of microcirculatory haemodynamics.

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