I have owned an OptiVisor for several years. Originally purchased for work, I bought a second pair for home and have used them for (to name a few) pulling splinters out of the kids fingers, assessment of a problem with my dog's paw, detailed gluing of small project work, removing and assessing a tick, replacing a watch battery and for making small, detailed measurements. My eyes aren't what they used to be--but with these... they're temporarily much, much better!
Others have reviewed the limited depth of field. This is true--you'll need to be close to the subject for it to be in focus. Please understand that this is not a fault of the manufacturer but is the way optics perform when designed to work in this fashion. In my opinion, this limitation makes these an unsuitable solution for reading unless you need extreme help and are willing to hold the material very close. I've tried. It's clumsy.
Two notes from my years of using this product. 1) There are "thumbturn" tighteners (small knobs visible in the picture) that keep the visor in position once you've adjusted it on your head. We tend to only tighten the one on the right because we are right handed. The left one became loose, fell off, and was lost for quite some time before we located it under the couch. Keep both of these finger-tight or you may lose one of them. 2) The optics can scratch if you store the visor improperly. We like the visor so much that we put a hook on the wall near the office desk--just an arm's reach away. Easy access. Safe storage.
These are ruggedly built, well-designed and have helped me to solve many problems. Therefore, they get my 5-star approval and recommendation.
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