I need to do a computer lens in +9.75-0.50x65.
The only thing that I can find is Essilor Computer Browser lens that is available in poly 8.50 Base.
Any other suggestions?
I need to do a computer lens in +9.75-0.50x65.
The only thing that I can find is Essilor Computer Browser lens that is available in poly 8.50 Base.
Any other suggestions?
Have them move the computer ten feet away!:bbg:
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 give her an executive Photogrey trifocal blocked with alloy or Hard Multifocal contact lenses!
Thanks!
Maybe I should just do a regular progressives with intermediate on the top!?@
ST-28/35?
Otherwise, I don't think any of the computer lenses out there go up that high. If you're sticking with a progressive, I think you're stuck with a "regular" one.
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.
You can go bi-convex with an Acess poly!!
DragonlensmanWV N.A.O.L.
"There is nothing patriotic about hating your government or pretending you can hate your government but love your country."
I'd do that before punishing someone with a +10 poly.Originally Posted by LENNY
That's how I do it, but if the +9.75-0.50x65 is the distance Rx, you'll be adding an additional +1.00 to +1.50, for a max power of +10.75 to +11.25, depending on the add power and distance to the screen. Off the top of my head that limits your choices to a 1.74 Shamir Autograph 2 and Rodenstock 1.67 Hyperop.
If the client will accept a segmented multifocal, and slightly more weight, I'd use a cr39 st28 aspheric or optimized/free-form Super Mod, emphasizing the improved optics at near, and wider field of clear vision across the width of the monitor screen, especially important if there are two monitors side by side.
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 tend to agree with Robert Martellaro. This person would love the vision achieved.
...and reduce the add...that's what I almost always do.
what about using a Shamir Auto2 progressive with the variable corridor, put the intermediate Rx up top, and jam up the near?
THAT WILL GIVE ME OVER +11 DISTANCE!
I decided to to a blended round seg FF!
INT/NV
oops
Nikon makes a 1.67 that is done at Essilor Dallas in an offfice lens. They may say it does exist, but I have ordered them.
I would prefer what you did, a free form blended bifocal in 1.67 would be the best choice overall.
Craig
Just curious...why wouldn't the thickness of CR-39 be a huge consideration here?
I think Robert was referring to something along the lines of the Bristol-Lite aspherics. They are a very thin (for CR-39) highly aspheric lenses, almost more like a blended lenticular like the Super Modular Aspheric he mentioned. They're a pretty good alternative to super high index for the high plus lenses.
DragonlensmanWV N.A.O.L.
"There is nothing patriotic about hating your government or pretending you can hate your government but love your country."
I could not believe my eyes!
It is amazing! 8.00 BC FF Blended bifocal that looks like blended myodisc from the back with a little carier. Cocave back curve! I will try to post some pics.
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