If you`re used to using the typical bifocal, you know that neck strain is commonplace. These dual-segment readers do a lot to eliminate that entirely. These are great for plumbers, electricians, framers, trim carpenters, mechanics, painters and anyone needing a vision boost occasionally. Look up or down for `near vision` and quit using your neck to adjust the diopter.
Unfortunately, replacement lenses are not available. Imported.