Medieval Vision?!

Medieval Vision?

I was thinking about how hard it would be to live without my glasses, and me being the medieval nerd thought about living in the medieval time period, not being able to see properly.

But then I got an idea, maybe back then bad vision didn't exist or was rare. Could this be a plausible idea? I thought that as time went on bad visoin was passed down. But back then the trait hadn't started, or was just starting, so it wasn't widespread.

What do you think? Does anyone know if this is true?

Well, the thing is that it is true that some cultures have worse vision than others. And no matter if people had bad vision or not there was always something for them to do. People with great distance vision hunted, were warriors, were the look outs. The peole with bad distance vision but great up close vision did beading, art work, were scribes,took care of kiddos, had close up stuff that they could do. They compensated. In violent cultures, or cultures that have had to fight or defend themselvesa lot, they have a tendency to have really poor distance vision, in my observation. The American Indian, and the Japanese are prime examples. If you look into their histories they have had very violent times. It would be logical to me that the warriors (old Eagle Eyes) that had great vision might have been killed off and therefore the ones left in the gene pool might not have had the greatest vision for distance so that is what they had left. IT would take several hundreds of years for that to breed out, if ever. That is not scientific fact, just opinion. I have sat and thought of this a lot myself and that is my way of thinking of it. So, I am glad I am not the only one. O^O