Blink

Your eyes open on their own every couple of seconds, and close again. The thing in the room only sprints while you can see it. You can force your eyes to stay open longer, but the charge runs out and then you are blind and it is fast.

Blinking hides you. Blinking is also the only way to get your sight back. You cannot do both at once.

Arrow keys / WASD to move, or click and drag. Hold Space to force your eyes open. Reach the lit door to escape.