How TruFocals Work

As simple as TruFocals are to use, their technology is very sophisticated.

Each "lens" is actually a set of two lenses, one flexible and one firm. The flexible lens (near the eye) has a transparent distensible membrane attached to a clear rigid surface. The pocket between them holds a small quantity of crystal clear fluid. As you move the slider on the bridge, it pushes the fluid and alters the shape of the flexible lens. Changing the shape changes the correction. This mimics the way the lenses in your eyes used to perform when you were younger.

This allows you to choose the exact correction that works best for you at any distance and under any lighting conditions. The result: clear, undistorted vision over a wide field of view: no zones, no lines.

http://trufocals.com/The-TruFocals-Technology

新型眼鏡可矯正多種視力問題
2010/09/29 23:46:57

（中央社台北29日電）許多年過40的人要看清楚餐廳菜單等近物，愈來愈困難，這就是老花眼。多數有此問題的人最後會認命，戴上雙焦或漸進式多焦眼鏡。但如果能有另1種選擇，使老花眼患者不須要多帶1副眼鏡，也不致在任何時候只有部份視野能對