I am in my 80's, 20/20 vision via lens implants, and right handed. Forty or so years ago I decided to close my left eye while shooting pool. Just like rifle shooters. It took a little while to adjust, but it greatly improved my accuracy. If there is a problem it is in my stroke. No recommendations.
"No recommendations." You're asking for recommendations?
You are not accurately seeing the shot perhaps because you just misjudge where your target should be.
If you have a correct target, maybe your eye is misaligned causing parallax and you cannot see the shot line.
If these are both okay then maybe you are having difficulty aligning your cue stick.
If all this is okay then you could be moving your body when you shoot.
If these are all okay then you might be introducing some other force pushing against the cue stick that causes your stroke to deviate.
These are some of the many factors that could be causing you problems.
