this paper investigates relative changes in specific absorption rates due to perturbing metallic spectacles in proximity to the face. A representative electrical property biological matter model with twenty-five distinct tissue types based on images of an adult male is used with the FDTD method. Both plane wave and dipole source stimuli are investigated and are used to represent a mobile cellul...

WITH a correctly fitting pair of approximately -14 D. corneal contact lenses, a person with normal emmetropic eyes can become a 12 D. experimental hyperope, and he can very nearly simulate the exact type of vision of the spectacle-corrected aphakic by wearing a correctly fitted set of + 12-00 D. Sph. cataract spectacle lenses. With this "simulator of aphakia", the inquisitive scientific researc...

The measured values of the axial meridional powers for 311 spectacle lenses are reported. The spherical refractive powers range from + 7 . 0 0 to —20.00 diopters with cylindrical powers of 0.00, 1.00, and 2.00 diopters. The departures of the measured from the nominal values are shown. The probable errors of measurement are discussed. A set of tolerance values is suggested and the degree of comp...