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Posted by on Monday, November 26, 2012 at 12:03pm.

Transpose the prescription
-0.75DS/-3.25DCx30 to the toric form with a capstan-form surface which has a +2.50D base curve

  • physics/optics - , Monday, November 26, 2012 at 12:23pm

    Try this
    http://www.opticampus.com/files/introduction_to_ophthalmic_optics.pdf

  • physics/optics - , Monday, November 26, 2012 at 12:30pm

    Thank you but I have already been on this website and did not find an example of capstan transposition...Are you able to help at all?

  • physics/optics - , Monday, November 26, 2012 at 12:34pm

    I have transposed the prescription so that it has a plus cyl as we are given a plus base curve=
    -4.00DS/+3.25DCx120
    what do i do next?

  • physics/optics - , Monday, November 16, 2015 at 6:37pm

    -6.5 DS/ +2.50x130/+5.75x120

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