Been having some issues with the sight in my left eye for about the last week or so. This has got me wondering about some effects that I have always seemed to suffer from.
I have always shot with both eyes open using a small blinder fitted to my shooting frames. When looking through the sights it apperars as if everything I see through the apature is tilted over to the left. Then when I look through the spotting scope with the other eye everything seems to go over the other way. I also use the spotting scope with both eyes open.
My question is am I alone in experiancing this, or is it a comon effect?

Alan