I have a customer with an rx of RE:-0.75/-0.75X90 prism 2IN LE:-0.75/-0.75X85 prism 2IN Add+1.00 he needs a bif but wants the prism in distant vision only. what I would like to know if it possible and how would I surface the lens.
Bifocal prism in distant vision only
I have a customer with an rx of RE:-0.75/-0.75X90 prism 2IN LE:-0.75/-0.75X85 prism 2IN Add+1.00 he needs a bif but wants the prism in distant vision only. what I would like to know if it possible and how would I surface the lens.
Franklin bifocal.
Not enough add power for a decentered FT45. If it's an adult, they could remove the eyeglasses for prolonged near tasks. SV readers, prism segs, free-form generated multifocals (if possible), should be on the table, in addition to the aforementioned Franklin.Originally Posted by aafzal313
http://www.optiboard.com/forums/show...anklin-Bifocal
Last edited by Robert Martellaro; 01-28-2014 at 02:54 PM.
Science is a way of trying not to fool yourself. - Richard P. Feynman
Experience is the hardest teacher. She gives the test before the lesson.
Great opportunity to recommend two pairs. Franklin bifocals would work too but the are $$$
You could first try the patient with press on fresnel prisms full size , then cut them in half to cover the distance only. That will tell you a story.
Who is requesting the distance only prism, the prescriber or the patient ?
What would your license allow you to do with that prescribers Rx if the patient requested SV reading glasses only ? Is the Rx written to allow you to make readers without prism ?
Last edited by idispense; 01-29-2014 at 10:25 PM.
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