Does video games affect studies!? Need honest answer plz?

Well, you're basing your ideas on assumptions.

Studies show that people who play video games usually have better hand-to-eye coordination and puzzle solving skills, whilst also being more relaxed people in general (violent video games in particular have been found to be quite cathartic).

It doesn't affect vision at all unless you sit far too close to a computer screen.

I play games actively, both sit-still and body movement games (like the Wii). Recently took some tests and passed them all. I'm also a better shot than most friends~

You are mindlessly sitting in front of a screen for hours instead of socializing or cracking a book open. Yes, it affects both negatively.

Yes