What kind of Safety Shooting Glasses do you use when you are blind as a bat?? I need tri focal lenses but the lines are in the wrong place to enable me to see the front sight and or the target. I think if I get a special pair of glasses with the line right in the middle of the lens (focal point at the front sight at arms length for pistol and rifle) it would be a good thing. Does anybody have this? Also do you recommend tinted lenses, yellow lenses? I shoot at an indoor range as much as outside.