My dad just had his implants, last year.  They're fixed focus, but the
eye is very adaptable.  He is able to see distance, and (with a little
squinting) see close enough to read.  He prefers a mild pair of
reading glasses, for reading, since it makes it more comfortable.

In photography, there used to be a technique used to get maximum depth
of field.  It involved something called the hyperfocal distance...it
resulted, even with a fixed focus lens, in sharp images from 3' to
infinity.  I imagine that my dad's implants use a similar technique.

http://www.great-landscape-photography.com/hyperfocal.html

     -- Chuck Knight



On Tue, Aug 4, 2009 at 1:03 PM, Paul<[email protected]> wrote:
>
> My understanding was that lens implants are fixed focus - you pick the
> focus - and that you need glasses to focus at other distances. But
> maybe the technology has gotten more sophisticated since my friend's
> surgery.
> >
>

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