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The Egg Factory is developing a proprietary technology to create E-bifocal reading glasses. These electro-active bi focal reading glasses can refocus automatically using chemistry and an electrical current on whatever you are looking at.
Wearers of traditional bifocal glasses have to crane their necks and turn their heads to focus thanks to the different curves of light from the two separate lenses.
“E” bifocals can automatically calculate the distance of where you are looking and convert that into a new curve using software, a microchip and the electrical current boomeranging off the field of vision back to the lens.
For now, you'll have to stick to your regular bifocal eye glasses. So far, “E-Bifocals” are only in the patent stage.