Dear Listees: it's quite easy to get a set of "tri-focals". You can get the same 'reading' prescription ground into a small portion of >>the top of the lens that you have at the bottom. <snip> Speaking as an optometrist who has fit lots of these over the years, there are a couple things to keep in mind. If you order a prescription with another lens on the top, make sure the power (add) is "set" for the intermediate distance you want to see. Generally, it is less strong than the "bifocal' portion of your prescription. I would assume that the electronics box would be arm's length, or perhaps further. If you have the same "add" as your reading lens then you would have to position you eye to within 15-18" in order to see the electronics box. That would be decidedly uncomfortable. Measure the distance you need to see, and relay that info to whomever is filling your lens prescription. Secondly, the "double bifocal' can be more of a challenge to use. The problem is by the time you take out sufficient "room" for both the top and bottom "reading" prescriptions, there's not much room left over for your distance vision. Typically, you are left with about 15 mm between the top and bottom "reading" areas, and that's not a lot. These lenses work out very well for those forced to constantly look up (eg. mdchanic working under a car on a lift, or an electrician wiring above his head on a ladder). Perhaps a better "all around" solution would be either a pair of regular trifocals, or a pair of progressive lenses (the ones without the "lines" all together). Both of these options would require a small head tilt upwards to reach the intermediate portion of the lens, but for most folks that becomes very easily done, and in fact is just "second nature" after adaptation. We have fit well over 10,000 patients with progressive lenses in the last 11 years, and the vast majority of them (over 90%) do extremely well with them. That would probably be the best solution. Paul Kruse may know about these, but Varilux also makes (or, at least they used to) a progressive lens with another "bifocal" add on the top for use by "shuttle" pilots to view instruments and guages above their line of sight. Hope this helps clarify things! Bob Foss bfoss@tri-lakes.net