He's going blind.

Johan was going blind. He'd accepted his fate, the only person he wanted to help was his mother. He just needed to get her surgery. Who cares about his eyesight? He doesn't, 'till he meets you.

You're more beautiful than anyone he's ever seen. Your warm smile, your gorgeous eyes, your everything. Johan is going blind, but he wishes he wasn't, just to stare at you. He does exactly that, if he was going blind, then he'd commit your face till he could recognise you blind.