Acoustic wave behaviour is affected by material parameters such as mass density and bulk modulus of the media where the wave propagates. Metamaterials provide a new strategy to design unprecedented ...

Light bends when travelling through a concentration gradient of sugar in water. The top layer of liquid is pure water while the bottom layer is concentrated sugar water. In these layers, there is no ...

The speed of light is determined by the medium (material) through which the light is travelling. Light travels faster in a vacuum than it does in any other medium. Light changes speed as it passes ...

COEUR D’ALENE, Idaho — No statistically significant difference in predicted refractive accuracy between intraoperative aberrometry and the Barrett True-K no history formula was seen when compared in ...

A new algorithm offers accurate IOL calculations in eyes undergoing cataract removal after previous laser refractive surgery, according to a study. Wolfgang Haigis, MS, PhD, devised the Haigis-L ...