furion dealt with pretty seriously a few years ago
https://forum.atlas-games.com/t/in-the-kingdom-of-the-blind-the-one-eyed-is-king/702/1
https://forum.atlas-games.com/t/blind-magus/4662/1
https://forum.atlas-games.com/t/blindness-revisited-again-towards-a-comprehensive-debate/4761/1