The purpose of the third prescription in trifocals is usually for "arms
length" use. Computer monitor distance.
If it is your purpose to use them for computer use, then you might be best
served with a purpose built pair of single vision glasses.
Trifocals are a rather unusual request.
-- Chuck Knight
On Sat, Jan 22, 2011 at 7:03 PM, powrwrap <[email protected]> wrote:
> On Jan 22, 10:34 am, DCassidy <[email protected]> wrote:
> > I have ordered bifocals from Zenni Optical but I really want
> > trifocals. Progressives do not work for me. Any suggestions for online
> > sales for trifocals?
>
> I looked into this about 6 months ago, and I did not find anybody that
> sold trifocals online. Good luck in your search.
>
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