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Varifocal spectacle lens surface power measurement
Author(s) -
Fowler C. W.,
Sullivan C. M.
Publication year - 1988
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1988.tb01044.x
Subject(s) - lens (geology) , optics , reflection (computer programming) , optometry , spectacle , materials science , computer science , physics , medicine , programming language , economics , market economy
An instrument is described for the assessment of varifocal lens surfaces based on a reflection technique. Results are also presented of measurements made on a series of lenses of the same design, illustrating some of the differences that exist between glass and plastics versions of the same lens.