FWIW, Dewalt makes some bifocal clear and smoked "consumable" safety glasses. In the last couple of years I have started to need readers so I keep a clear and smoke pair in the bike. The best price I have found was on Amazon. I have seen them in 1.0, 1.5, 2.0, 2.5 and 3.0. Attachment 14020 Attachment 14019
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