I have been getting double vision after long periods of time in front of screens. I have been getting it for years, and it only happens when I stare intensely at a TV screen or computer screen (most cases I am playing a game). I need to be playing for at least two hours, and it takes a day or two to go away. However, if I continue to play it can take as long as a week to two weeks for the double vision to subside. The double vision is vertical, and I usually only notice it with light colors or white images. I also can see through it, so it is like a ghost, and the displacement of the object starts out very small and increases if I continue to play games. At one point it was so bad that I experienced double vision and noticed all colors and it lasted about two weeks until it was completely gone. The double vision is still there even if i close one eye or the other. After some research I learned that vertical double vision could be a result of extreme dry eyes which I believe the case is. I just got some Visine eye drops and intend to see how they work. I also plan on going to a eye doctor but I would like to hear what others think it could be. Stopping playing or being exposed to a computer screen less is difficult because I want to program and design games so I spend a lot of time playing games, coding, and doing other work with computers.

Also, I noticed that I squint to attempt to make the double vision go away. It usually helps but may be worsening. Also, I just was playing and it seems that if the double vision is almost gone, and I start again, it returns very fast

Any help would be greatly appreciated.

It's good you are going to an eye doctor. That should get to the root of the problem. There are different types of double vision. True double vision is a brain thing--the brain doesn't fuse the images coming from each eye. You have something different--yours is an eye thing (present when you close one eye). It could very well be caused by dry eye. Or it could be a combination of things--for example, astigmatism aggravated by dry eye. It sounds almost like a persistent afterimage you get.

There are products on the market specifically for dry eye--Visine is not one of them. You need a lubricant or artificial tears.

The sooner you get to the doctor, the sooner your problem should be solved.