Amazingly, Hermione suggested to him a Permanent Sensory Charm that would enhance his left eye to make up for the loss of his right. He accepted that and found that the difference was incredible. Before, he couldn’t see anything on his right side and he had to turn his head fully to see anything there, but now, it was like he just automatically knew what was there, like he’d ever lost his eye to begin with. That being said, Harry’s right eyelid remained forever shut, and he ensured nobody would ever see the damage he’d suffered at Voldemort’s hand. The lightning bolt scar and all the other smaller ones on his face and body brought enough attention to him as it was- he didn’t need more of it.