I've owned these safety glasses for a long time. They're like regular safety glasses, but they have magnifiers at the bottom. I've found them to be useful when I use a rotary tool, bandsaw, or drill press. I can look down and see the details, and when I back up to see the big picture, it's not blurry because the upper part is not magnified. You can get them in a variety of strengths.
from Boing Boing https://ift.tt/2LjsCB3
via IFTTT
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