Wednesday, November 4, 2009

What do the A, B, ED, and DBL on the chart mean? (9/11/2009

These are the measurements on the frame. The A is the distance across the center of one lens. The B is the height top to bottom of the lens. The ED is the diagonal measurement of the lens. The DBL is the bridge size or the distance between the lenses. To give you a better idea of size, you can double the A measurement, and add the DBL to get an approximate distance across the frame that you can compare temple to temple on your face.
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9 comments:

  1. UnknownMay 22, 2015 at 11:51 AM

    does this include the lens+frame thickness or only the lens itself?

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  2. UnknownMay 22, 2015 at 11:57 AM

    This is the lens only. It does not take into consideration the frame/rim around the lens.

    ReplyDelete
  3. curiousJanuary 2, 2016 at 9:56 AM

    so, the lens outside of the frame, i.e., lens alone in your hand?

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  4. UnknownJanuary 2, 2016 at 3:31 PM

    Correct, the lens alone as if it was loose in your hand.

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    Replies
    1. AnonymousNovember 9, 2016 at 8:34 PM

      How would you apply this information differently when attempting to size base 8 curve frames online?

      Delete
  5. UnknownNovember 9, 2016 at 9:01 PM

    With an 8 base frame, the lens is going to be larger than on a regular pair of eyeglasses so it is a little harder to properly size it. What seems like it may be too big when you do the calculation is probably not that big on a wrap frame. In a wrap, a smaller head will probably fit into an A size of just under 58-61. A more average face will fit into wrap eyesizes in the mid sixties range. A larger head will want something in the high 60's.

    ReplyDelete
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