bonehill,
Interesting post. I have wondered the same thing about these programs. I am 58 and my vision, though not as good as it was 15 years ago, is not too bad. Mostly interested in this as it pertains to shooting birds or clays, which is where I would most like to improve my vision. However, what wyobirds said about seeing the stitching on a fast ball is not fantasy. While fairly good eyesight is a prerequisite, or at least corrected eyesight, learning to focus intently on the bird is more important than perfect eyesight for good shooting. After striving to learn how, I can now see the rotation of a standard clay bird much of the time. The bird seems to slow down and actually seems larger than normal. This is at reasonable distances, now, not at 80 yards. I have also learned to see the shot swarm in the air much of the time. This is greatly dependent on the background and the lighting conditions, but it is a great aid in helping a struggling shooter determine where he/she missed. I can never see my own shot, but can see others' pretty often. I shoot with a couple other close friends who can do the same thing, and I'll tell you, it is a great aid to helping each other. We don't even suggest where the other may have missed if we can't see his shot. Again, it does not require great eyesight, or some super-human ability, just learning what to look for.
