Re: Eye dominance trouble...
Unless visual acuity is markedly different between the two eyes, I'm not totally convinced that eye dominance is as cut and dried as I keep hearing. I mean, it takes place in the brain, and not the eye. I see reports of experiments where eye dominance is retrained back and forth.
What the Marine Corps Teams do is to obscure the non-dominant image by putting frosted tape across that lens of the shooting glasses. The do this to ensure that although the non dominant eye does not have an image to focus upon, it still gets an equal amount of light.
This is also a 'brain thing', as closing or patching the non dominant eye causes the brain to trigger the other pupil to open further, and this response has its origin in the brain, It's an autonomic survival reflex that ensures that when only one eye is available, more light is processed, giving the brain more data to process than might normally be available with only one eye. This is bad, because the wider pupil loses resolution, and vision sacrifices brightness for sharpness.
Well, eye doctors do something similar with infants, when optical impairments are present. They block the image, but not the light, of the impaired eye; thus training the other eye to become dominant.
I think that we, as adults, can do the same thing.
Greg