You don't. It doesn't exist in the real world.
As far as we have been told, there are no such thing as a perfect byakugan
No, the Byakugan cannot see through genjutsu. Genjutsu manipulates the senses of the target, creating illusions that even the Byakugan cannot dispel unless the user of the Byakugan is skilled in genjutsu dispelling techniques.
Answer is no
Can neji use byakugan In Naruto Chronicles 2 ?
yes
No
I highly doubt you could because no mortals eyes are strong enough to be able to use the byakugan.
No, only members of the Hyuuga clan have Byakugan, like Hinata and Neji. Anko has a curse mark from Orochimaru though
NO!
White eye
The Byakugan is much better because the Sharingan was derived from the Byakugan. That means the Sharingan was CREATED from the Byakugan. Just because the Byakugan can see chakra points, and the Sharingan has heightened skills or abilities, the Byakugan is still better, without the Byakugan, there is no Sharingan.
No only the Byakugan