HI all,i am back.
I believe that Boruto got an eye implant from a Hyuga clan sibling or member.Boruto have similar eye scar like Kakashi when he gotten Obito's Sharingan.I believe that Boruto being reckless in battle (Like his father) underestimated his oponent and did not unlock plot shield/plot no jutsu (since he have half of naruto power) .As a result,Boruto got his right eye slash (seemingly by a sword) and was rush to Konoha medical unit where he gotten an upgrade.
I believe that Boruto got an eye implant from a Hyuga clan sibling or member.Boruto have similar eye scar like Kakashi when he gotten Obito's Sharingan.I believe that Boruto being reckless in battle (Like his father) underestimated his oponent and did not unlock plot shield/plot no jutsu (since he have half of naruto power) .As a result,Boruto got his right eye slash (seemingly by a sword) and was rush to Konoha medical unit where he gotten an upgrade.