Hi Rustum

Shame to hear of your eye deterioration.Obviously the little EER scope can be used with one eye shut as I tend to do when range (target) shooting. I do find I go cross eyed when concentrating hard on a target and that is why I got rid of the single point sight. Just about impossible to use on targets as the dot disappears when the focussing on the aiming mark for too long.

Can you use a peep sight?

Lindsay