Each lens is able to changes its molecular structure, changing the focus as needed. There is a transparent LCD layer to the lens that with the accelerometer detecting motion, sending a signal to the LCD layer. This changes how light is refracted and is comparable to the varying thickness of traditional glasses.
Sunday, January 08, 2012
Electronic Focusing Eyewear
LCD-based eyeglasses that dynamically refocus to switch between nearsighted and farsighted modes: