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Thread: snellen chart

  1. 07-21-2011, 07:09 AM #1
    agger
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    Question snellen chart

    anyone know about how to estimate eye power base on snellen chart?
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  2. 07-21-2011, 07:14 AM #2
    Chris Ryser
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    http://en.wikipedia.org/wiki/Eyeglass_prescription
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  3. 07-21-2011, 09:02 AM #3
    OHPNTZ
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    Love that wiki photo...the phoropter is pointing to the floor. Classic...
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