Why does his mask cover his eyes? That tells me he's blind. Honestly I can't tell if the mask-less image has his eyes open or closed, but if they're open the milky look tells me he's blind too.
Random thought: If he's a Falmer, and they've been hiding underground for centuries, they may have lost their sight.
Probally...either their sensitve to the light or have some kind sonar system like bats,due to their centuries of their apdatations of hiding underground.