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These eyeglasses are wearable tech that aim to help you see clearly

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Here’s technology you wear on your face, and we’re not talking Google Glass.

Unlike the $1,500 Glass, which lets you see the world differently thanks to apps and photo and video capabilities, Adlens Ltd. is wearable technology that lets you see the world — literally — by allowing the wearer to adjust the correction.

Because they are relatively inexpensive, they can become your backup glasses when you’re traveling. But they are not for everyone.

Adlens Adjustables and Adlens SunDials use a technology that lets one pair of glasses move from close-up to distance vision correction with the turn of tiny knobs on each arm of the frame.

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Two wave-shaped plastic polycarbonate plates are in each lens. One plate is fixed and the other moves to adjust vision. When you turn the knob, the movable plate shifts left or right to alter the power of that lens. Wearers can adjust the vision for reading, computer or distance.

The glasses are said to correct more than 90% of spherical errors (from -6D to +3D spherical), but they do not correct for astigmatism. Because I have astigmatism in both eyes, I could see the difference in vision when I turned each knob, but the view was slightly fuzzy. When a friend who has no astigmatism tried them on, she could adjust them to see perfectly.

Adlens was founded in 2005 to offer refractive vision correction in developing countries. For the U.S. and developed countries, Adlens offers lightweight, durable and affordable glasses to serve as a spare or emergency pair of glasses when something happens to your prescription glasses.

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Adlens Adjustables begin at $30 and Adlens Sundials begin at $40 a pair. Sundials also offer UVA/UVB protection.

The glasses are sold online by Adlens and at many retailers, mainly optical shops.

Follow us on Twitter at @latimestravel

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