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Thread: Need a little help on

  1. #1
    OptiBoard Novice Zildjian242 is on a distinguished road
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    Need a little help on

    Hello all pretty cool sight, im currently in school for ophthalmic dispensing. I need a some help on determining the thickest point and the thinnest point on a lens when just giving a prescription. My notes on this is a mess
    So how would i go about doing this say whats thickest point on a lens with a -2.50-1.25x90 percription?

  2. #2
    Underemployed Genius Jacqui has a reputation beyond repute Jacqui has a reputation beyond repute Jacqui has a reputation beyond repute Jacqui has a reputation beyond repute Jacqui has a reputation beyond repute Jacqui has a reputation beyond repute Jacqui has a reputation beyond repute Jacqui has a reputation beyond repute Jacqui has a reputation beyond repute Jacqui has a reputation beyond repute Jacqui has a reputation beyond repute Jacqui's Avatar
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    it would be on the 180 line, thickness is dependent on lens size.
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    The Man, The Myth, The Legend OptiBoard Gold Supporter Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz's Avatar
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    The Power Cross is your friend!

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    Here is astart!

    http://www.opticianworks.com/chapter2.html
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    The Man, The Myth, The Legend OptiBoard Gold Supporter Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz's Avatar
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    The Man, The Myth, The Legend,

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    Stay thirsty my friends!!

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    The Man, The Myth, The Legend OptiBoard Gold Supporter Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz's Avatar
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    The Man, The Myth, The Legend,

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    Who cares how time advances?
    I am drinking ALE today
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    Stay thirsty my friends!!

    "Techno Viking doesn't dance to the music......the music dances to Techno Viking!!! "

  6. #6
    The Man, The Myth, The Legend OptiBoard Gold Supporter Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz's Avatar
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    The Man, The Myth, The Legend,

    Fezz

    Who cares how time advances?
    I am drinking ALE today
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    Stay thirsty my friends!!

    "Techno Viking doesn't dance to the music......the music dances to Techno Viking!!! "

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    The Man, The Myth, The Legend OptiBoard Gold Supporter Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz has a reputation beyond repute Fezz's Avatar
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    I suggest a little - One-on-One with the instructor to clear this up.
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    Stay thirsty my friends!!

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    OptiBoard Novice hasyasasa will become famous soon enough
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    The Power Cross is your friend!

    It is also known as the Optical cross.

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