The AcuFocus KAMRA inlay is a thin, opaque ring perforated with 8,400 micro-holes to provide for nutrient transport. When placed in the cornea, the small-aperture technology of the inlay provides increased depth-of-focus and improved near visual acuity while maintaining good distance visual acuity. Presbyopia * Presbyopia is the clinical term for the loss of near …
The Economist predicts that Japan will have a decent recovery in 2012 and 2013 Private economists are forecasting a boom in 2012 and 2013, as the rebuilding of the devastated Tohoku region in north-eastern Japan acts as a big stimulus, which will offset slower growth in America and Europe. Official estimates put the damage at …
Researchers at Columbia Engineering School have built optical nanostructures that enable them to engineer the index of refraction and fully control light dispersion. They have shown that it is possible for light (electromagnetic waves) to propagate from point A to point B without accumulating any phase, spreading through the artificial medium as if the medium …