As I approach 50, my eyes no longer focus over a wide a range of distances, and I've started wearing varifocal(progressive lens) glasses. I am having trouble getting used to them for shooting. If I use an aggressive forward lean I look through the top of my glasses, which means that the target is sharp but my sights are blurry. I can correct that by tilting my head sharply back, but that feels strained and uncomfortable.
I've tried standing straighter and lifting the gun higher. That puts my head in a more relaxed position but my hand ends up slightly above my shoulder. I shift my strong-side foot back for balance when I straighten up.
I know I could have prescription glasses made specifically for shooting, but that seems foolish unless one is training for competition.
All thoughts and advice appreciated.