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Thread: Does D segment or round segment produce more jump?

  1. #1
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    Does D segment or round segment produce more jump?

    Hello,

    I'm getting conflicted answers so thought I should ask on here,

    1. 'Round is more blended than D seg so there is less of a jump, with D seg there is more of a sudden introduction of the near'
    2. 'the larger the segment size the greater the jump, as there is more distance between the dividing line and the segment centre of a round segment there is a larger prismatic effect induced'

    Please confirm which of these answers are correct, I'd just like to be sure.

    Thank you!

  2. #2
    Rising Star Michael I. Davis's Avatar
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    I vote 2

  3. #3
    Forever Liz's Dad Steve Machol's Avatar
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    As per the forum rules you agreed to when you registered:


    "This forum is for Eyecare Professionals. Consumers are not allowed to post on the Board, although they can read posts and search topics."


    All the professional Opticians on this site would love to help you solve your problems or answer your questions about your eye care and eye wear need! But vision and visual solutions can have thousands of correct as well as incorrect answers.


    We care about your vision and visual needs so strongly that we must advise you to seek a professional in the eye care field. Only with in-person evaluation can you truly get a proper diagnosis. You PD and powers are simply not enough information to give you any kind of advice other than speculation. We are sure that you want the best in eye care, as we want for you. Please seek out someone that you can discuss your issues with in person.


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