___I more had Borg in mind. I'm blind in one eye, but the retina is good & if an image is projected past the scaring on my cornea, ala eye tests, I could potentially see again in stereo. A sunglass mount is too squirelly for the alignment necessary, whereas the bolts are not. The bolts terminate in snaps, & so if you take a hard hit, the device breaks away like ski boots from bindings.
___I would do it in a minute!

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Nemo me impune lacesset. ~Unattested