Adlens is a maker of adjustable lenses with an Innovation Centre in Oxford, UK. Their liquid- filled lenses allow the wearer to self-adjust the magnification of their spectacles manually. The lenses are adjusted by thumb-and-finger rotatable dials on the frame and are detachable once the correct magnification has been selected. This highly practical, low-cost optical technology provides profound benefits to vision-impaired people in less developed countries where optical services are inaccessible to many. Adlens, the innovative company behind the adjustable lens technology, use a Mecmesin Vortex-i torque tester to ascertain that the rotating components of the lenses are reliable and ergonomically acceptable.
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