RK... I used to have that problem, but about a year ago, I spent the price of the average Krieghoff collectible Luger to have Lasik surgery done on my antique eyes... I only wish that this technology has been available 30 years ago. My eyes are now 20/15... and they used to be 20/425 (right) and 20/725 (left)
It is a miracle of modern health technology... I heartily (and seriously) recommend it to older folks such as yourself
BTW, I will never give up my digital caliper... they will have to pry it out of my cold dead fingers...