Living Testimony
You brought up a subject that not too many people know about me, but I have real bad vision, and the best my contacts can correct is to 20/40, and glasses are worse at about 20/60 or 70.
My eyes are -10/680 (700 is legally blind) with astigmytism in the front
and back of each eye (why I have to wear hard contacts and can not wear
soft ones) and I have cornea scarring from a pair of contacts warping on me
in my mid 20's (I was blind for 2 weeks, almost had to have cornea transplants, and had to wear glasses for 3 years after that before my eye doctor would put an experimental hard lense just out back then called Polycon2 with holes drilled around the edges so my eyes could get more oxygen).
Sometimes my eyes 'fuzz out' from the scars getting roughed up a bit, and makes it extremely hard for me to see, or if I have been playing for longer than 12 hours at a time.
BUT ... I placed 9th in the world at the Valley International Championships in Vegas in singles 8 ball with over 1,000 entries, my team placed 32nd out of over 1300 teams entered.
My eye doctor has been with me since that one pair of contacts scarred my corneas, and I said, "Doc, you know what my eyes and vision is like, how in the world can I see best when I shoot Pool?" He said that my brain is making up for what my eyes can not see - kind of like the 'Third Eye' thing. And I really believe it is true. I have a very high ability of being able to focus my mind on something and concentrate on it, and I think my brain gives me that
'extra' vision that I need to play good. IF YOUR MIND IS VISUALIZING ALONG WITH YOUR EYES SEEING, you will play much better than you would otherwise. Point in reference: Put a ball halfway between the first and middle diamonds from a corner pocket, put the cue at the other end, about a 70%
angle to cut the ball in. Get up, look at the shot and shoot it. Did you cut it into the corner pocket or not. Now do it again, this time using your mind to see exactly where on the ball you need to hit it along with using your eyes, visualizing the path the cue has to take to make the shot, and shoot it.
I guarantee you will have much more success with the 2nd method as opposed to the 1st method.
Very good players do not just see shots, they visualize shots in their head, and that takes your brain sometimes making up for what even your eyes can not see.
2 years ago (at age 55), I won the Kansas State BCA Championship and my team won the team championship, and I also won the Seniors Championship of Oklahoma City, and a couple more good tournaments.
To be a good player means keeping your physical state and your emotional and intellectual state in good shape - all 3 together, and I have alsways been a believer in the mind, body, and spirit thing ... And I think any great athlete from any sport would endorse it also...