This is one of the most unique mechanics I've seen so far in the entries that I've played, and I think it works really well! :3 I thought that being forced to only take glimpses of your surroundings in order to stay safe was pretty neat + really ramped up the tension! Combined with the music, SFX, and aesthetics it made for quite a creepy + tense experience :D
I thought the eye close/open mechanic was so cool that I immediately started showing my brother, who is in the room with me right now, and he agrees that it's a funky feature :3
PS. Is it a demonic office chair? :o That's what I thought it looked like while I was trying to take quick looks at it. If it is, that's just awesome as a creature design!