bjorke
Designated Driver
Make a spreadsheet. Sometimes going through plastic lenses every 9 months is cheaper.
Also, consider that scratches, when viewed through glasses held up to a viewfinder, don't get hit with direct light and thus don't really interfere with your finder all that much. So a possibility is: have shooting glasses, that might get beat up, and regular glasses, for general wear.
An extra feature of the shooting glasses, if you wear bifocals, is that they can be just single-vision.
Also, consider that scratches, when viewed through glasses held up to a viewfinder, don't get hit with direct light and thus don't really interfere with your finder all that much. So a possibility is: have shooting glasses, that might get beat up, and regular glasses, for general wear.
An extra feature of the shooting glasses, if you wear bifocals, is that they can be just single-vision.