I mentioned it in the About page, but the reason I like games around 6-7th gen is because I have poor eyesight. But when a lot of people hear that, they might think "how does that work? How do you play in the first place?" In this page I'll try to share some basic info and my personal experience..
'Visual impairment' as a term refers to any general impairment to vision. It's easier to contrast it with other terms. "Partially sighted" and "low vision" refer to vision that is poor enough to significantly inhibit daily activity, though it may not qualify for "legal blindness". Some countries or institutions may have distinct numbers for what qualifies as what, but it can change.
Types of visual impairment and their effects can vary wildly since the human eye is a very complex system. Even two people with the exact same diagnosis could have very different symptoms and lifestyles resulting from it. A grand majority of people who are 'blind' still can somewhat see, even if it's only lights, colors, or shapes.
Since we're talking about technology, let's use an old style USB camera as a metaphor.
The camera portion is, of course, the eyeball itself. Then, there is a cord - the optic nerve - that travels around to the PC - the brain. The camera captures imagery, encodes it as data and transmits it using the cord to the PC to store and use. But if you've ever had trouble with these, you can get a sense for how varied visual impairments can be, and where they can be caused by.
So for my particular impairment, let's describe it that way instead of me giving you a Wikipedia article and some numbers. For my two 'cameras', one of the cords is busted, leading to the PC not getting next to any info. The other one is functional, but thrown off. The picture is blurry and hard to focus, even though nothing is particularly wrong with the unit itself. There's some other details, but they don't fit.
Asking someone 'erm, how can you use computer, checkmate lol u fake' seems to be a lot of people's idea of the funniest joke ever, so here.