[Frank12us]

Personal experience from a left eye dominant /right handed shooter. Results are roughly equivalent, but Option 1 is a lot more stressful.

Option 1: Go down the rabbit hole.
Option 2: KISS... look at the bird with both eyes open, mount the gun, shoot the bird.

 

[Frank12us]

Frank: your options seem so easy, but what if Option 2 isn't working for a 60 year old man who has enjoyed shooting much of his adult life and suddenly can't hit a target because he has shifted dominance? Try harder? Give up and play golf?

Given that I am 52, have been dealing with the issue since I was in my 20's, and my dominance changes depending on how tired my eyes are...
Trying harder doesn't work and just increases stress. Would advise the person in your example to relax and have their Rx checked - then go back to shooting low-gun straightaways with both eyes open, working back up through the various sight pictures. For me, low gun is the key as it allows me to fix the target's presentation and prevents occlusion until the last moment.

1. Dominance (Neurological). Which eye has better visual acuity? The eye with the clearest image will be dominant.
2. Tracking (Physiological). Muscular control of eyeball (Right Eye). Tracking errors can result in loss of clarity/dominance shift (eg. a twitch in dominant eye).
3. Location Prediction (Learned Skill). Predicting location is a skill - different from dominance/tracking. Strobing LCD lenses are one training tool that can help your brain with predictive tracking: Strobe Sport Training Glasses - Improves Reaction Time,Focus

 

[Frank12us]

Got my answer from a former head of the American Academy of Ophthalmology, but acknowledge science is not fixed. Something to consider is the extent our tests for dominance and the answer you got are based on a static image vs. moving target. Eg. Right eye is better at reading an eye chart but has poor tracking... Standard dominance test will show right eye; but actual result is left eye has a much clearer image of moving subjects/may exert dominance when shooting.

 

[Frank12us]

So given the difficulties in testing, diagnosis, and cure the KISS methodology has ended up generating similar results (to date). Most difficult part is not getting angry/frustrated about going back to basics when changes to your body mandate an adjustment.

Not knocking RightEye or Strobing glasses - Interested to see how it plays out with respect to correcting dominance issues.

 

[Frank12us]

Ever miss a target that you could have sworn you were right on?

Sure. That said, was it due to a tracking error, dominance issue, flinch, stopping my swing, lifting my head, jerking the trigger, hold point, mismount, or 1000 other potential issues? Would rather get back to basics and focus on the next bird vs. agonizing over the last one.