RE: Hind Sight - here to help!
I understand about the glasses thing. I wear bi-focals and had terrible problems seeing through a peep sight. I have used the Hind Sight for four years and have not had any trouble with the crosshairs covering too much of the target. The rear sight gives you a scope like sight window that forces your attension on your kill area instead of the entire target. The crosshairs, on the 45, provide an 'X' in the middle for you to center your front pin. The only thing I can say is try it. I'm sure you'll be very impressed and if not we offer a refund of the purchase price.
Hind Sight