A common practice is for a shooter and a spotter to take turns in order to avoid eye fatigue.
Otherwise, eye fatigue would set in, and again, you risked missing an important element.
One simple way to combat eye fatigue is to install a glare filter.
So far, no evidence-based study has found that new technology itself causes vision problems, other than eye fatigue.
I read about 20 or 30 pages last night, and I didn't have any eye fatigue.
In addition poor color memory, eye fatigue and previous references can affect how color is viewed on an individual basis.
First came eye fatigue, and next came mind confusion.
This helps to avoid eye fatigue and allows one team member to rest while the other watches.
It has also been linked to neck and backaches and eye fatigue.
To avoid eye fatigue and improve balance the non-aiming eye should be kept open.