Saw someone wearing TWO-lenses glasses, about 1 inch apart, parallel

Discussion in 'Optometry Archives' started by David Combs, Nov 19, 2009.

  1. David Combs

    David Combs Guest

    Was going to a music performance; elderly woman behind me
    had on glasses of a type I'd never seen before.

    It was if she had two pair of glasses, one about one inch
    out in front of the other pair.

    I got a close look at them, and it wasn't some glued-up
    hack job -- they were clearly manufactured from scratch
    to be like that.

    A: What is the generic name for that type of glasses?


    B: What is it, acting as a telescope? (But as far
    as I could tell it didn't invert the image.)

    C: how long have these thing been around?

    D: No -- stupidly, I didn't study the individual
    near and far lens, to see if they were both
    convex or concave or one of each.


    Thanks!

    David
     
    David Combs, Nov 19, 2009
    #1

    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Similar Threads

  1. Surevue contact lenses: two-weekly or monthly?

  2. -8 myopes that can see 1 inch led digits without glasses from distance

  3. Effects of wearing glasses that are somewhat too weak

  4. About wearing glasses all the time

  5. Ive heard of people wearing readers over contact lenses but what about distance glasses?

  6. Two general questions about contact lenses

  7. Why only two silicon hydrogel lenses approved for thirty day wear?

  8. Could someone with free access to JAMA get me these two articles? x

Loading...