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  1. Thread: Axis query.

    by Mymyopia
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    8,669

    So while there is a format we would use, there's...

    So while there is a format we would use, there's not an industry standard (in the UK) that we must use.
  2. Thread: Axis query.

    by Mymyopia
    Replies
    36
    Views
    8,669

    Thats why I asked, back when I was in training I...

    Thats why I asked, back when I was in training I was told sphere and cyl must be to two decimal places and an axis must not have any decomal places.

    I've had an optical advisor who's confused a...
  3. Thread: Axis query.

    by Mymyopia
    Replies
    36
    Views
    8,669

    Axis query.

    Hi everyone.

    A quick question regarding how we write a prescription.

    Does anyone ever write an axis with a decimal point on the end such as 10.0?
  4. Replies
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    8,469

    I feel like such a idiot for asking but I need...

    I feel like such a idiot for asking but I need help once again. I've got a grip on the previous SAG type questions but I've got stuck once again.

    We were given the question....A lens +4.00/+2.00...
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    2,092

    Student advice.

    Anyone know of any forums where a student DO can go to get help with his course work?. I'm hoping to find a place where fellow students gather to give helpful pointers etc. I have searched Google...
  6. Replies
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    8,469

    So if I'd said the lens was 40X50mm oval you'd...

    So if I'd said the lens was 40X50mm oval you'd quite simply use -4.00 with 40mm vertical and -6.00 with 50mm horizontal?.
  7. Replies
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    8,469

    That's a great help, many thanks. If you can...

    That's a great help, many thanks.

    If you can clarify one thing though. How do you decide which power to use for each diameter?
  8. Replies
    7
    Views
    8,469

    SAG of astigmatic lenses.

    Hello everyone.

    I'm taking a day release course in Ophthalmic lenses and I'd appreciate some clarification with a few areas of SAG if anyone can.

    I can calculate edge thickness of round and...
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