In 1995 there was a major breakthrough in progressive lens design. A patent 1 was granted to Carl Zeiss for a new concept in which a progressive lens could be optimised for each individual ...

The Minkwitz condition reminds us that the width of clear vision in the progression zone of a lens is dependent upon the power of the near addition and the length of the progressive corridor. The ...

OPSM optometrist Elizabeth Kodari finds the development of progressive lens technology among the most fascinating of recent eyewear innovations. “Starting as a son’s desire to rid his father ...

A progressive lens design is like a bi- or tri-focal lens in that it corrects more than one vision problem at a time. However, these lenses have no visible lines, improving the cosmetic appearance of ...

The seamless design of progressive lenses offers comfort, style, and utility all in one lens, which makes finding a perfect pair of glasses easier than ever. Progressive lenses, also known as ...

Aims To determine if ‘Defocus Incorporated Soft Contact’ (DISC) lens wear slows childhood myopia progression. Methods A 2-year double-blind randomised controlled trial was carried out in 221 children ...

Extreme myopic laser-assisted in situ keratomileusis (LASIK) poses challenges regarding future intraocular lens (IOL) power selection. A male patient in his 40s complained of progressive right eye (OD ...