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These are eyeglasses with a focus dial on the side of the frame that changes the lens strength in real time, so one pair covers reading, phone use and distance viewing. Each lens adjusts on its own, which suits people who need different prescriptions per eye or who are tired of swapping pairs. The lightweight frame is built for all-day wear. Compared with fixed-strength readers or separate distance glasses, they replace several pairs with one adjustable set, but the dial mechanism adds bulk at the temples and the optical quality of adjustable lenses is not the same as prescription lenses fitted by an optician.
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These adjustable glasses have a focus dial on the side of the frame. Turning the dial changes the lens strength, so one pair works for close-up reading and for looking at a distance. Each lens adjusts separately, from a reading setting to a distance setting.
The dial works by hand and needs no tools. The frame is lightweight, with no pressure points, and the design is unisex. The glasses suit people with early presbyopia and people who need different strengths for different tasks.
