Spheric and aspheric

Discussion in 'Optometry Archives' started by Diet Rich, Jul 24, 2003.

  1. Diet Rich

    Diet Rich Guest

    There are two identical lenses, except that one is aspheric and
    another one is spheric. Will the aspheric lens be necessarily thinner
    than the spheric one (just because of its design) and to what extent?

    Also, what can you say about production of Tokai Opticals (Japan),
    especially their 1.71 aspheric lenses? These seem to be the best
    aspheric lenses that I can get in my country (no, it's not Germany) -
    I can't get Optima's Hyperindex here, alas.
    Diet Rich, Jul 24, 2003
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