They said video games can improve your vision is there any game that almost garantees my vision will improve

They don't improve vision. The opposite, if you overdo it'll hurt your sight.

But here's the right fact. Hopefully you check it out to get the correct results out there.

Science could prove video games improve your "Reactions"

Via many tests over hundred of people and years of research they found video games can improve your brain to think faster, boost the speed of analyzing factors and respond faster as the result. It'll help you to make decisions very much quicker. And it'll boost your eye reactions not sight. Video games specially mysterious ones and action ones will train your brain and eyesight to react and observe faster, analyse details in a very specific way and catch visual information in a ordinary way. It's not sight it's reaction and detail analyzing.