With free-form lenses (also called digital high-definition lenses), the fabrication of the lenses from wearer's eyeglass prescription is optimized with computer-controlled surfacing equipment that is much more precise than conventional tools.
Medical Imaging began with radiography after the discovery of x-rays in 1895 by Wilhelm Roentgen, rÃ¶ntgen A german professor of. physics
Starting in the 1980s, the advent of technology like M.R.I.âs and CT scans, combined with a fee-for-service system, created ballooning demand for imaging and drove the compensation of radiologists to unsustainable heights, he said.