- Jul 29, 2014
- 50,043
There are days when my dominant eye fights with the other. Pretty much shoot everything with both open. Scoped rifle, red dot, handgun, bow. I find that less taxing. If I'm having trouble on something longish range for instance, I will close my weak eye, but otherwise, both eyes open.Eye dominance is not an absolute thing: people with a very strong dominance in one eye typically don’t even need to close or occlude their non-dominant eye. Those people would be ill-served by closing their dominant eye. People who often see double images have very low dominance.
You can kind of test this: if you hold your thumb out and defocus enough to see two images, you eventually see one thumb start to waver and disappear first. So for me, the thumb on the left disappears eventually, which corespondent to a weaker right eye.
Here’s an article that explains better from Norman Wong. Before Norm retired, precision shooters used to fly into San Francisco just to get a prescription from him:
https://www.ssusa.org/articles/2017/10/1/five-easy-steps-to-determine-your-dominant-eye/