Jōgan

The Jōgan is a unique dōjutsu that is known only by the Ōtsutsuki Clan, whose members claim it's troublesome and that it's a power strongly inherited from their clan.

In the manga the dōjutsu is featureless in appearance with a barely visible pupil. When depicted in the anime, the dōjutsu is blue in colour with a darkened sclera and visible pupil.

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 involuntarily activate when Boruto focused his attention on a particular person or object. As a teenager, he displayed the ability to activate it at will.

Abilities
Before gaining control of this dōjutsu, it would independently activate in the presence of dangerous/hidden targets. It can perceive the flow of chakra, enabling Boruto to see the visible changes in one's chakra and likewise track a target through their chakra. It can clearly see the chakra pathway system and determine its most key point. It can also see through invisible barriers that connect between dimensions, as well as predicting where Yomotsu Hirasaka will be used.

Trivia

 * Chengxi Huang, who is an animator for Boruto: Naruto Next Generations, posted a picture on his blog that shows Boruto cleaning his right eye. The caption of the picture reads and in the accompanying text, the animator elaborated that Boruto's eye was neither a Byakugan nor a Tenseigan. He also explained that the eye is related to the Ōtsutsuki clan's dimension and its powers are the dōjutsu equivalent of Naruto's ability to sense negative emotions. However, he then noted that all this information would be explained in detail in the future and fans should not think too much of it for now, as the author hadn't thought everything through himself.