In these distinctive glasses, the corrective power of the polycarbonate lenses is continuously adjustable via small rotating wheels. Two wave-shaped plates in each lens glide across each other and allow adjustments from –6 to +3 dioptres, correcting more than 90 per cent of spherical errors. With a simple construction, these glasses are suitable as a spare pair and for patients with fluctuating vision, such as due to diabetes or after eye surgery.
评审团评语
Thanks to their efficient functionality, these glasses are helpful in numerous situations and can be worn by people whose dioptre strength fluctuates.
