I bought a pair of the ESS Ice glasses from Optics Planet. At the time they were about $60 and came with a tinted,clear and yellow lens. I added the optic insert for $20 more.
My Eye Doc charged me fifty to put a progressive prescription with the bifocal on top for the shooting eye. He charged $50. So for about $130 I have a set of prescription shooting glasses with three lens choices. I could not find any cheaper anywhere else.
Certified Glock Armorer, GSSF,NRA, Georgia Carry.Org, IDPA/Safety Officer