complicated by increasingly developing cataracts
Yeah, that's a balancing-act, for sure!
Other's I have talked with have done their "when should I get eye surgery" accounting less on a monetary scale, and more to the "I have one, good shot at success, and I don't want to use it up too early".
Though my focal-points have become reduced at an increasingly-rapid pace, I will just wait until I just can't take it any longer.