Board Thread:Theories and Speculation/@comment-294840-20170617233752/@comment-734582-20170618085050

Lorenzo.r.1st wrote: yes it can. hinata can see for more than 5km in the 1t shippuden arc, so neji>>>>>> than that in his prime. so in the end, neji can see at least 5km+++ underground. We don't know. I don't think that's how it works. Neji was a genius due to HOW he used his Byakugan, there's no mention of whether that translated to good use of the eye itself.

Plus, i'd imagine the Byakugan has some limit regarding through how much material it can look through. Seeing through 5km of forest is maybe equivalent to 100m of soil. The forest wasn't that dense so the amount of looking through trees etc is far less than looking through 5km of actual soil.