These eye glasses you refer to are great, except for one flaw. They don't have the lens on an angle for you to see perfect vision, unless you are standing up. If you are leaning over, the lens need to be slanted backward about 15 degrees, so there is no aberration of the view.
Folks:
What about upside-down progressives? Recently, I had my optometrist create a prescription for me that optimizes between 2 and 12 feet. I play with a fully square-on traditional snooker stance, with my chin on the cue (centered between the eyes). The issue I had, was the classic progressive prescription -- close-in focus at the bottom of the lens (for reading, obviously), and gradually increased focal distance as you move your eyes upwards.
The problem is that while "chinning" the cue, the face is angled downwards, and your eyes are looking through the uppermost part of the lenses (i.e. maximum focal distance -- which blurs stuff close to your face, like the cue ball).
I was thinking that it might be possible to have my optometrist "flip" the progressives so they work the opposite way -- close-in (reading) at the top of the lens, and gradually increased focal distance as your eyes sweep downwards to the bottom of the lens. The way this would work for me, is that as I "chin" the cue, my face is naturally angled downwards towards the shaft of the cue, and the reading (close-in) prescription will be right there -- where I can "read" the cue ball right from the get-go. If I need to sight down the table, I just tilt my head upwards to cause my eyes (and the glasses) to sweep downwards to increased focal distance.
Do you think this would work? (I'm thinking of trying it.)
-Sean