My eye vision literally decreases(like the side of my eyes side are fading)

Yes this happens when I'm trying to find a good move and playing on a real life chess board my vision will start fading. Although it might not be chess related but when my vision starts to fade, I also forget the plan that I was thinking before it happens, and ended up being comepletely bad at chess. Or maybe it's just I'm not good at finding good moves so I'm overworking my brain just to find it?

No one ever has accurate vision at the sides of their eyes. It's an illusion created by eye movements. You can confirm this by trying to read a paragraph of text while staring at a word in the centre. The text looks a lot like the actual words and if you already know them, you can figure them out but you can't actually read without looking directly at them.

I'm confused....can you describe more what the "fading" looks like?

Tunnel vison?

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To be honest with you, that sounds very, very concerning to me. I'm no doctor, but I have never had this experience before and I don't think it's normal.
Please, get it checked out. I hope everything is okay.

Hi, any updates on this? Is everything okay?

You should see a doctor. This sounds like Peripheral Vision Loss. It can have different causes and some of them need treatment to prevent the condition progressing.

The thing you are describing is almost certainly the normal neurological response to fixing your eyes in a single spot. You can convince yourself of this by doing exactly that when you're not at the board and experiencing the same feeling / vision.
The solution is just to remember to move your gaze around normally and not stare at one point/piece.

check blood pressure and i think it mostly mental cuz after reading the post i feel the same way 
lol

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