Re: variable focal length eyeglass lens question

From: Clayton Weaver (cgweav_at_aol.com)
Date: 01/15/05

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    Date: 15 Jan 2005 23:10:34 GMT

    >You may want to discuss the
    >different variations with a knowledgeable ophthalmologist; mine
    >specifically recommended the Rodenstock (can't remember their trade
    >name),

    These are (IIRC) "Varilux".
    The last pair were the same
    lens brand, but at a lower
    magnification. If these worked
    as well as those did, I would
    have no complaints.

    I am wondering what change
    in the physics at higher magnifications
    can produce these extreme abberations
    in a progressive lens that works fine at
    a lower magnification.

    Ie, why isn't it a problem solved by
    merely by changing the lens topography?

    Thanks for the news group tip.

    Regards,

    Clayton Weaver
    <mailto: cgweav@aol.com>

    "Everyone is ignorant, just about different things." Will Rogers

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