I wondered everytime Kakashi uses his sharingan, how does he "sees" thing coz apparently both of his eyes arent same in any similarities. Sharingan eye, like having different angle compared to normal eye, am i right? If he closed his normal eyes during battle, it is understandable but the problem is he still using his normal eyes and how actually Kakashi sees in both eyes in sync simultaneously? Doesnt it have at some point, eye ball effect or something like that?