On Wed, 19 Sep 2007 04:34:49 GMT, "Leo Lichtman"
wrote:


If you go to a store that sells
cheap reading glasses, you will find an assortment of strengths, all
labelled in diopters. The higher the number, the closer you can focus.
Just try on different ones until you find a pair that makes you comfortable
at the 22" working distance you seem to like. They won't be safety glasses,
though. For that you will need to give some money to your optician.

Not necessarily. There are stick on lenses that cling to the lower
half of safety glasses. They come in different strengths to create
your own safety glasses "bifocals" I don't remember what they're
called, but I found them on the web within the last year. Didn't buy
any though - cheap readers with spring hinges are only $3 at the local
bargain outlet.

RWL