I just recently started using yellow Titleist DT SoLo balls. I am near sighted in one eye and far sighted in the other, wear trifocals and have cataracts developing. I was having trouble following the ball flight and seeing where my drives landed......not that they were that far. I have lost two of them so far....in the water. For me they make a big difference, By the way I am 58.The yellow ball coverings seem to have a different texture or coloring to them than years ago when yellow balls seemed to be a fad. When I was in High School and college I would have never played with a yellow ball. Best wishes on your project.