From these recordings, the researchers calculated that a guinea pig retina transfers data at about 875 kilobits per second. Human retinas have about ten times as many ganglion cells, giving a “bandwidth” of 8.75 megabits per second.
Read more: https://www.newscientist.com/article/dn9633-calculating-the-speed-of-sight/#ixzz7Ig3MCMrR
Source Paper: (Open access)
Koch, K., McLean, J., Segev, R., Freed, M. A., Berry II, M. J., Balasubramanian, V., & Sterling, P. (2006). How much the eye tells the brain. Current Biology, 16(14), 1428-1434. https://doi.org/10.1016/j.cub.2006.05.056
