Maybe not, but those activities don't really compare to what we are trying to achieve. Many people close one eye when they are trying to work on something requiring fine adjustment or accuracy.
That's because they percieve that it's better or there is improvement closing one eye
But then, 90 % of perception is 10 % of reality
Your brain must therefore work out which is the right one and 'waste' processing power on discarding the other set of data.
Almost, but in fact the brain doesn't have to do what you suggest, it is already done by the master eye. The primary image is from the master eye and the secondary image simply supports the primary. The brain doesn't have to discard anything. The end result is a better image if both eyes are able to focus on the front sight . The image is better because there is more information sent to the brain from two eyes as opposed to one
Try this........ in a semi darkened room with light colored walls look at the wall with both eyes open, then close one eye . The wall is brighter with both eyes open . Twice as much information going to the brain. Same thing happens with the front sight, with both eyes open, the sight is brighter, and has more contrast. In other words an improved sight picture. While both eyes are focused on the front sight the the primary image that comes from the master eye is the predominant image and the secondary image from the supporting eye gives a higher contrast, more resolution , a brighter sight picture. That is why both eyes should focus on the front sight .
Hey it's training, to do this, eventually it becomes second nature. Any time i see a video of the finalists of air or free, both eyes are open . They have the advantage, by embracing the task of training with both eyes. Nobody says that it is easy, but it can be done
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