Anyone know what this is? A relative of mine wakes up and during an entire day, he claims that he sees a black "curtain" that runs from the top of where he can see to the midway point. From the midway point to the bottom, his vision is just fine. This episode occurs occassionally, but like I said, when it does, it occurs all day. To get somewhat of a feel for this, try closing your eyelids half way. Any advice?

Tell him to go straight to the doctor.

I'd say it's more likely to be something physical rather then paranormal.

Yea that seems like it could be nerves that have connection with the brain, may simply be a visional problem.