Description
Discover the Card Shark Dual Strength Bifocal, the ultimate solution for individuals seeking versatile reading glasses for up-close tasks and computer use. With innovative Dual Strength Bifocal lenses offering power on both the top and bottom, enjoy unparalleled flexibility and clarity without compromising your vision.
Say goodbye to the hassle of switching between multiple pairs of glasses or settling for subpar vision. Our Dual Strength Bifocal features top lens with a weaker power for computer use and a bottom lens for reading power. Crafted with fine optical CR39 material and a high-quality TR90 plastic frame, these bifocals offer durability, clarity, and style for your everyday needs.
Large size is 5-2/3" x 1-1/2" for wide faces or mm frame optical measurements 56-17-145
Medium size is “5-1/3 x 1-1/2" for average size faces or mm optical measurement 53-17-140
Please note: The lenses are custom made per order, so this item can take up to 5 days for us to ship out to you. Keep this in mind when selecting more expensive rush shipping options. We will still ship it via Priority or Express, but it won't leave our facility for at least a few business days.
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10 Reviews Write a Review
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Dual bifocal readers
I think if more people knew about these they would love them. They help my computer and also my paperwork become clear. I use a lower strength on the top and higher on lower and it works wonderfully
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Fantastic!
I’m an electrical engineer and spend much of my time switching my gaze between a large monitor and reading material on my desk, and since I am far-sighted, this means switching between two different strength reading glasses. For quite some time now I’ve looked for readers with different magnifications to no avail. I’ve tried “progressives” which have a very small field of view (an extreme case of foveated view), and can not tolerate this. I don’t remember how I stumbled on these card sharks, but I’m very glad I did; these are worth their weight in gold to me; no more swapping glasses repeatedly. Quality is fantastic as well. Good job Debbie Burke!!
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Dual Strength Bifocal
I spend a lot of time on computer while doing paperwork, Dual strength bifocals allowed me to stop having to switch glasses each time i went from cpu screen to paper documents. Great product that met my needs.