Are you asking that if proximity to the ground will eliminate the VRS?
You can't enter VRS when IGE because you won't be able to obtain the ROD needed to develop the large vortices. If you are in VRS and you near the ground, the ground will have the same effect as if you are in a hover which will reduce the size of the vortices. So, the ground may slightly reduce the effect of VRS for a moment right before you impact the ground.