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K. Doblhoff-Dier, L. Schmetterer, W. Vilser, G. Garhöfer, M. Gröschl, R. Leitgeb, R.M. Werkmeister:
"Measurement of the total retinal blood flow using dual beam Fourier-domain Doppler optical coherence tomography with orthogonal detection planes";
Biomedical Optics Express, 5 (2014), 2; 630 - 642.

We present a system capable of measuring the total retinal blood
flow using a combination of dual beam Fourier-domain Doppler optical
coherence tomography with orthogonal detection planes and a fundus
camera-based retinal vessel analyzer. Our results show a high degree of
conformity of venous and arterial flows, which corroborates the validity of
the measurements. In accordance with Murray´s law, the log-log regression
coefficient between vessel diameter and blood flow was found to be ~3.
The blood´s velocity scaled linearly with the vessel diameter at higher
diameters (> 60 μm), but showed a clear divergence from the linear
dependence at lower diameters. Good agreement with literature data and the
large range and high measurement sensitivity point to a high potential for
further investigations.