A Different Kind Of Eyeglasses

For many people past the age of 40, focusing on close objects just gets harder and harder. Most people with this condition, called presbyopia, eventually give in and get reading glasses, bifocals or glasses with progressive lenses. But what if there were another alternative that didn't require people to carry an extra set of glasses or have only part of their field of vision in focus at any one time?

Zoom Focus Eyewear LLC, of Van Nuys, California, has just such an option. The solution: eyeglasses, called TruFocals, that the wearer can manually adjust to give clear, undistorted vision whether reading a book, working on a computer or looking into the distance. Each TruFocal lens is actually a set of two lenses.

A manual slider on the bridge of the eyeglasses adjusts the focus by changing the shape of the membrane. The outer lens can be custom made to correct other vision problems besides presbyopia, including nearsightedness and astigmatism.

(via J-Walk Blog)