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  1. tenex

    Double vision with binoculars

    But the OP has only noticed double vision with a binocular, not without, and only post surgery, not before -- correct? What is its magnification? Might it be worth trying the lowest possible, say 6x? Or the widest field possible, like an NL, just as a test? If it does have to do with using a...
  2. tenex

    Double vision with binoculars

    My wife is often wearing contact lenses that are set up this way. I find it hard to believe but the brain adapts. She doesn't fiddle with diopters on bins; would it even have enough range to correct for this? I suppose that means she's effectively using only one eye when birding? But in any...
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