The details are presented in a recent issue of Investigative Ophthalmology and Visual Science.
>> Abstract and full length article on the journal web-site
Citation: M. Miura, S. Makita, T. Iwasaki, Y. Yasuno, "An approach to measure blood flow in single choroidal vessel using Doppler optical coherence tomography," Invest. Ophthalmol. Vis. Sci. 53, 7137-7141 (2012).