Simple kids' eyeglasses that let wearers tweak the lenses could help solve a problem that has complex implications for young people in the developing world who lack access to the eyewear they need.
The key to the prototype specs, called ChildVision glasses, is their special lenses, made of two clear plastic membranes filled with silicone fluid. Adjusting the lenses via a small dial on the side of the glasses controls the amount of fluid that's pumped between the covers. Depending on the volume, the curvature of the lenses changes, adjusting the strength. More fluid means more curvature, and more power. When fluid is pumped back out, the lens curvature flattens, making for a weaker prescription.
Designed for children between 12 and 18, the glasses earlier this month nabbed the inaugural Visitor Vote award (PDF) at London's Design Museum. Since June, visitors to the institution have voted for their favorite design from 99 nominations displayed at a pop-up installation. … Read more