Refraction is the change in direction of light when it passes from one medium to another. The working of a lens is based on the refraction of light when they pass through it. Lens is a piece of ...
Apochromatic (APO): A lens group designed to correct chromatic aberrations for three wavelengths (usually red, green, and blue) rather than just one or two. Aspheric: A lens element with a ...
Thirty patients were randomised to receive one of six lens implants including three aspheric lenses and their spherical counterparts. Pre and postoperative testing was carried out including visual ...