I've been noticing that my sight picture is drifting. I used to be strongly right eye dominate but i'm noticing more and more that i'm picking up the left side of the sight when i present. I'm having to tape up my left lens sometimes when i shoot now. Any ideas of exercises or things i can do to maintain stronger right eye dominance? Maybe it's just time to put red dots on everything.
Eye dominance actually *can* change - and this is typically due to differences in both eye position and how big or small the "target" is, as well as can be affected by eye fatigue.
However, inconsistencies in our presentation of the gun can also affect eye dominance (which can be made especially hard for those who have incomplete dominance to begin with).
So, my questions, before we take this discussion further:
(1) Are you noticing this switch happening as your shooting session progresses in duration? (i.e. fatigue issue)
(2) Are you seeing the "swap" occurring due to the target size/distance?
(3) Are you picking up a different eye with your sights because of small differences in how you are presenting the gun?
^ Towards the latter, when you notice your sight picture swapping/drifting, is it because you're at full extension, having concentrated too long on the sights (back to fatigue), or is it as you are presenting the gun out from your face to full extension (in which case the switch between dominance may be caused due to the relative position between the sights and the target being in-flux, during the actual movement)? Or, as a last possibility, is it because you're actually somehow presenting the gun just slightly differently (maybe you've been doing some reading or have taken some training and are trying out a new stance or presentation)?
Incomplete dominance is also something that folks can suffer from. Sometimes, this combined with just the simple process of aging-related eyesight changes (maybe one eye is "better" than the other), can cause unexpected switching in dominance, too.