- progressive lens
-
a multifocal eyeglass lens that provides a continuous range of focal power between near and far distances.[1975-80]
* * *
Universalium. 2010.
progressive lens
Look at other dictionaries:
Progressive lens — View through a progressive lens at some distance. In normal use, a much smaller section of the glass is used, so that the distortion is much smaller. Progressive spectacle lenses, also called progressive addition lenses (PAL), progressive power … Wikipedia
progressive lens — a multifocal eyeglass lens that provides a continuous range of focal power between near and far distances. [1975 80] … Useful english dictionary
progressive lens — omnifocal l … Medical dictionary
Progressive — is an adjectival form of progress and may refer to:Politics* Progressivism, a political movement/ideology with origins in early 20th century America * Progressive Era, period of reform in the United States lasting from the 1890s through the 1920s … Wikipedia
Progressive retinal atrophy — (PRA) is a group of genetic diseases seen in certain breeds of dogs and, more rarely, cats. It is characterized by the bilateral degeneration of the retina, causing progressive vision loss culminating in blindness. The condition in nearly all… … Wikipedia
Corrective lens — A bifocal corrective eyeglass lens A pair of contact le … Wikipedia
Chronic progressive external ophthalmoplegia — Classification and external resources ICD 10 H49.4 ICD 9 378.72 … Wikipedia
Chronic Progressive External Ophthalmoplegia — (CPEO) is one manifestation in a constellation of associated mitochondrial DNA mutation known as mitochondrial myopathy or cytopathy that cause ocular motility disturbances. Introduction CPEO is a rare disease that may affect those of all ages,… … Wikipedia
Sidney Lens — (1912 1986) was an American journalist and author, best known for his book, The Day Before Doomsday , which warns of the prospect of nuclear annihilation, published in 1977 by Doubleday. He also wrote a history of U.S. intervention abroad, The… … Wikipedia
omnifocal lens — a lens whose power increases continuously and regularly in a downward direction, thereby avoiding the discontinuity in field and power of a bifocal or trifocal lens. Called also progressive l … Medical dictionary
