These TruFocals glasses are either an inspired idea or the daftest thing ever to hit main street. And we’re not sure which. Readers under 45 can now toddle off and wash the dog or something while I address our older constituency. OK set?
So, remember bifocals? Well now they’ve been geeked. These glasses offer a slider mechanism on the bridge which adjusts the vision for near and far in one sweep. So when you need to see the road sign you can adjust and when you need to read the map close up, ditto. Clever idea all right, but what gives us pause is the rather hefty $895.00 price tag. Nevertheless, it’s a clever idea all right, no doubt.
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.