RVR
It has to be RVR...
For lower visibility takeoff..LVTO..it is always RVR
Visibility is a general visibility or sector visibility whereas RVR is related to Runway visual Range which governs the LVTO..and it is same for landing as well always RVR.
Minimas are based on RVR.
If you open the next question posted by Big bad d regarding the EU ops link and go through the manual you would see that all the minimas mentioned states RVR