Waking Up Blind

Our main character woke up to find himself in an unfamiliar and rare situation. Last thing he remembered was falling asleep after browsing through his emails on his phone as he always did. He awoke in pitch darkness, was this his room? He quickly realized something was wrong, his eyes, he couldn't see anything. Rattles, bangs and strange sounds came from downstairs recanting the story told of the place being strange. The house was pitch black; how in the world did he end up like this, and what caused his sight to leave him, did something happen while he slept?