My great grandmother had macular degeneration and I've been told it runs in families. Last time I went to the eye doc, I asked him about it and he said at my age, he'd already see it, so I should be safe from that. My mom had bad cataracts removed a few years ago and I had also asked about those. He said I was good there too since modern glasses have UVA/B protection and I've been wearing them so long. I do have a lot of floaters, but I don't think anything can be done about that. I just ignore them.
I'm just really lucky that it is so simple to correct for.