I find it amazing that some people keep the drive to play video-games when their vision deteriorates, as the experience becomes so degraded that I personally prefer not to play.
I started to lose contrast perception around the time The Elder Scrolls: Skyrim came out, and that was one of the first games that I stopped playing because its map is rather low contrast. The last game that I played was World of Warcraft, which is extremely colorful and thus very high-contrast as far as games are concerned. I've heard of a guy who
$1, but it changes the experience so much and makes him so dependent on other players that I can't understand the interest in playing it that way.