Hi, I have experience a weird change in vision lately. Last week, while a bit sleep deprived, I was working on writing a manuscript (typing on the computer). I kept seeing words on the screen appear in 3D as if they were coming out of the screen. I thought maybe it had to do with sleep deprivation and I just needed to rest, but I had the same phenomenon occur today while very well rested. I went to a local restaurant where they write daily options on a chalk board. Some of the words looked again like the were in a different plane than the rest. I tried to research this online, but found no reliable info. Help would be appreciated. Thank you.