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Old 10-10-2012, 10:47 AM
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9mmepiphany 9mmepiphany is offline
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I've run into this with several clients, so I'd like to offer a couple of observations.

1. Closing the non-dominate eye has some downsides:
a. it limits target awareness
b. it increases facial muscle strain
c. it causes a lost of visual acuity of the open eye as the brain perceives there exist a lower light environment

2. It is highly unlikely that you'll willingly close either eye in a high stress situation, it is much more likely that both eyes will widen

I shoot with both eyes open, I just don't pay conscious attention to the image from the non-dominate eye. This is usually trained, much the way we train a lazy eye, by obscuring that eye. We usually do this with translucent tape.
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