The slight problem arises, DFC, where one runway has RVR specified for approach/landing, however, in the opposite direction it does not.
In the above referenced case, RVR is available in the first instance, but not the second, even though transmissometers are installed.
IE: the chart minima applies, not some wild idea about using RVR for another runway, even IF that other runway is the same pavement but in the opposite direction.