The jougan could very well be an original dojutsu that was wielded by the ancient ohtsutsuki. The byakugan runs in boruto s maternal family.
When first used during his time in the academy boruto did not appear to have the ability to activate it on command instead the eye would.
Jougan boruto. When depicted in the anime the dōjutsu is blue in colour with a darkened sclera and visible pupil. In the manga this dōjutsu is featureless in appearance with a barely visible pupil. 6 relationship to the byakugan.
This dōjutsu was awoken by boruto uzumaki in his right eye. The jōgan is a unique dōjutsu that is known only by the ōtsutsuki clan 1 whose members claim it s troublesome and that it s a power strongly inherited from their clan 2 in the manga the dōjutsu is featureless in appearance with a barely visible pupil 3 when depicted in the anime the dōjutsu is blue in colour with a darkened sclera and visible pupil 4 when first used during his time in. Boruto s jougan and karma both show up randomly.
Why does boruto have jougan. His mother hinata hyuga is a direct descendant of hamura ohtsutsuki. However someday he will be able to control the jougan.
Boruto activated jougan during fight with mitsuki vs nue in a particular scene nue s chakra triggered boruto which results in revealing the new dojutsu jougan. Boruto s younger sister is known to have inherited the power. The reason why boruto uzumaki has the jougan could very well be hidden in his genes.
The term refers to pure eye and its structure is quite similar to naruto s eyes when he senses evil chakra or when he is releasing his darkest side.