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
Ultrasound imaging is a noninvasive medical test that helps physicians diagnose and treat medical conditions. Ultrasound images of the musculoskeletal system provide pictures of muscles, tendons, ligaments, joints, and soft tissues throughout the body.