Creative Multifocal Placements

[srob]

Hello Folks:

I'm writing a short info sheet and I need to discuss how to use a standard bifocal or trifocal in creative ways to solve visual needs.

The everyday stuff like golf glasses, music glasses, etc. are common. What about some uncommon uses of flat tops, execs, etc. Have you positioned any of them in some unusual way to help a particular visual need.

I'm not referring to traditional occupational segs like Double-D's and OPLs. I'm talking about standard multifocals used in creative ways.

Can you give me some examples?

Thanks,
Steve

[Doug in Hutch]

Ten years ago or so we had a woman with macular degeneration who wanted progressives but had been told she couldn't wear them -- her blind spot was right where the seg would normally be. We fit her with two left lenses (might have been two right, I don't remember for sure) and it worked. It helped that she was really determined to make them work.

[Jedi]

I made up a pair for a flutist in an orchestra. Single vision in the left eye, FT28 rotated 45 degrees temporally on the right in her intermediate script. This gave her the ability to see the conductor and the audience, while being able to comfortably see her sheet music.

[chip anderson]

If you read Stimson and a couple of old masters, lots of things like putting segs off set for artists to see the palate on the left, object on the right, stuff like this are mentioned and explained.

[Scott R]

Music Ft35 leaving 10mm or so of dv at the top of the lens. The seg intermediate.

[gemstone]

A famous proctor of the opticians board in my state liked to ask the candidate to make him a pair of shaving glasses.

[HarryChiling]

Using differing segs to help with double vision instead of a slab off would be a good idea. Also we had a dock worker in Baltimore that operated large cranes where he sat up about 100 feet or so in the air while looking down he had to pick up cargo off of boats. It presented a problem because he had to see distance through the bottom and intermediate through the top to see his instrument panel. We used a Exec upside down with the intermediate power in the top (or bottom).

[Chris Ryser]

Take a Kryptok (round seg) mount it on top either to the right or left, one seg on the nasal and the other on the temporal side.

This way golfers have distance sight and can bent the head down and side ways to mark their scores.

[Andrew Weiss]

Music Ft35 leaving 10mm or so of dv at the top of the lens. The seg intermediate.

I've done something similar for several musicians, only I use an exec.

[Scott R]

I have done execs too but Ft-35 come out much thinner and lighter

[DragonLensmanWV]

I have done execs too but Ft-35 come out much thinner and lighter

We just finally convinced a long-time Exec user to FT-45s. I like to refer to them as Franklins rather than Executives for the connotation.

[Diane]

Hello Folks:

I'm writing a short info sheet and I need to discuss how to use a standard bifocal or trifocal in creative ways to solve visual needs.

The everyday stuff like golf glasses, music glasses, etc. are common. What about some uncommon uses of flat tops, execs, etc. Have you positioned any of them in some unusual way to help a particular visual need.

I'm not referring to traditional occupational segs like Double-D's and OPLs. I'm talking about standard multifocals used in creative ways.

Can you give me some examples?

Thanks,
Steve

Any chance you are from Tyler, TX???

Diane

[Uncle Fester]

My thread from a couple months ago has an interesting use of decentration to produce prism in the near only. Search for "Can this lens be made"

Also many years ago an airline pilot wanted right eye occupational quad, left eye exec, upper distance, bottom intermediate.

Back at my alma mater OSF we had to make a hundred jobs from start create the order then line up a finished lens, edging and check off. One classmate made a bifocal and gave a creative explaination of why they came out the way they did. Our teacher Mr Labelle (50 year B+L lab man from the old school) wasn't buying it and told "Fred" to "please come to me and ask for another lens and not try to pass off these glasses where the right lens seg was edged upside down" :p Thats when they also caught on that we wouldn't write the order until the job was done. No more 74 pd's with 3prism diopters up and out:eek:

[srob]

Any chance you are from Tyler, TX???

Diane Pretty good chance

[gemstone]

We just finally convinced a long-time Exec user to FT-45s. I like to refer to them as Franklins rather than Executives for the connotation.
If they'd called it the blue collar in the first place, it would have saved the industry a lot of problems.