Presenting this:
Shamir Auto II freeform lens
P.D.'s are spot on. Pt has little/no vision in OS
Has to turn head to the left to see thru the channel.
All cks out.
What would you all do?
Presenting this:
Shamir Auto II freeform lens
P.D.'s are spot on. Pt has little/no vision in OS
Has to turn head to the left to see thru the channel.
All cks out.
What would you all do?
First, I would check to make sure you don't have two left lenses.
Which Autograph II design is it? And what is the shape of the frame? And did you specify a near PD as well on the order?
Second (and I'm not a doctor, nor do I play one on TV), but I would check for convergence issues.
Was the patient wearing a PAL previously?
There are rules. Knowing those are easy. There are exceptions to the rules. Knowing those are easy. Knowing when to use them is slightly less easy. There are exceptions to the exceptions. Knowing those is a little more tricky, and know when to use those is even more so. Our industry is FULL of all of the above.
I he's turning his head to see the channel, he's probably not converging normally due to poor vision in the other eye. It makes sense - his OD won't converge, so he has to turn his head to enter the channel that he would normally use if his eyes converged, i.e. his gaze travels closer to straight down so he has to turn his head to see the channel. Try widening the pd OD.
DragonlensmanWV N.A.O.L.
"There is nothing patriotic about hating your government or pretending you can hate your government but love your country."
And herein lies one of the advantages of Free Form progressives (at least full backside ones). IF it's a convergence issue, you can order the Autograph II Variable and specify a near PD. The software will take it into account (provided you lab enters the job correctly) and in this case "straighten" the progressive corridor. Thus no need to mess with the Distance PDOriginally Posted by DragonLensmanWV
.
There are rules. Knowing those are easy. There are exceptions to the rules. Knowing those are easy. Knowing when to use them is slightly less easy. There are exceptions to the exceptions. Knowing those is a little more tricky, and know when to use those is even more so. Our industry is FULL of all of the above.
And herein lies one of the advantages of Free Form progressives (at least full backside ones). IF it's a convergence issue, you can order the Autograph II Variable and specify a near PD. The software will take it into account (provided you lab enters the job correctly) and in this case "straighten" the progressive corridor. Thus no need to mess with the Distance PD
There yuh go podner!
DragonlensmanWV N.A.O.L.
"There is nothing patriotic about hating your government or pretending you can hate your government but love your country."
Other PALs that have zero inset capability are the Hoya ID and Gradal Individual. I assume the MyStyle and Individual will continue to be available with a specified near PD.
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.
If it's convergence wouldn't he be turning his head to the right?
Last edited by Uncle Fester; 12-09-2010 at 06:16 PM. Reason: tweak...
Right (correct). But the OP may be describing the head turn from the optician's perspective instead of the wearer's perspective. In other words, "your other left".
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.
I had a smililar case a while ago... turns out they had Brown's Syndrome. Patient is not always turning head to see? Just an idea.
I would order the lens uncut at 7 degrees off axis and edge it on axis to skew the near portion of the multifocal to be more vertical. The best choice for a multifocal is the widest corridor one you can get.
I don't think that the iD instyle has a zero inset capability. At least, last time I tried to ask my lab rep said no. However, mystyle does.
All of the iD family of lenses do indeed have customizable insets.
RT
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