Originally Posted by Andy_K

I don't know how old you are, but at my age I need really good light to see anything at all. Kneeling might be good enough for me to see a bright yellow thorn in my tire, but without contrast I'm just as likely to find it with the tip of my nose on a typical overcast day. I always thought I'd be 70 or so before I started saying things like that, but it turns out it's happening in my early 40's. What can you do? My actual solution is to use good tires and not worry about them very often.