term that describes a type of lens (spectacle or contact lens) that has more than one focal area such as bifocal, trifocal, or progressive ("no-line bifocal") lenses. myopia: nearsightedness; close objects are in relative focus while distant objects are blurred. Light is focused on a point that lies in front of the retina.
A type of spectacle or contact lens design that includes more than one focal area. Bifocals and trifocals are both multifocal lens designs.
A lens with an upper area for seeing in the distance and a lower area with a different prescription for close work.
special contact lens with multiple focusing options
A lens having more than one focal power in USA. A lens having more than two focal powers in UK.
a contact lens with more than two viewing zones
Type of spectacle or contact lens design that includes more than one focal area, such as bifocals or trifocals.
A lens which is characterized to two or more foci or gradient foci, e.g. progressive lens.