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
MRI, as with all medical imaging techniques, is a relatively new technology with its foundations beginning during the year of 1946. Felix Bloch and Edward Purcell independently discovered the magnetic resonance phenomena during this year, and were later awarded the Nobel Prize in 1952.