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You won't find any. The problem is that the manufacturers and surgeons consider 20/20 to be a success, no matter how blurry it is. Patients are mostly happy because pre-op they had terrible,...

Agreed.

If the segs are set at the same height, as in your example, the eye reads 6 mm below the seg top. That would have to also apply to the round seg, or at a location where the prism is much less than...

Interesting. Your example means the round seg ht is set about 5 mm higher than the flat top. To me this means that the patient will have a 5 mm window where he is looking through a round bifocal...

You can get a minor reduction by using the wider flat top on the more minus or less plus side, but the wierdness of it to me far exceeds the wierdness of a slab off. I don't see how different...

2 pair is obviously always an option, but was not part of the original post. Dissimilar segs might have been mentioned, but I'm not sure what dissimliar segs would do for the 4 ^ vertical prism/cm...

This is exactly why if you MUST use a progressive in such a case, you MUST use a slab, unless the patient is non-binocular. It's also the reason that for most of these types (aniso more than 3 D.)...

Thanks guys. I'll play with those before moving on to higher texts. I want to work it into my software. I think I have the formulas for adding differing axis cyls.

Anyone have the formula for correcting Rxs for lens tilt (panto)?

Thanks.

My oasys pts don't, the N & D ones mostly do. My case of fusarium slept in her lenses (against my advise). Now she doesn't, and she only wears a lens on the other eye...

I referred her to an o.m.d. who did the reporting. She did ok, but has a great big scar centered just outside the pupil margin, so she did lose a bit of va and apparently will be suing B&L (she...

(copying this from my posts to s.m.v and o.d.wire) I've refit quite a few people into silicone lenses this year, and am thinking I should have paid more attention to some of the complaints about...

That's the silliest thing I ever heard.

Hey, that's a pretty strong statement. The post says the BEST CORRECTED VISUAL ACUITY is 20/60, not even if that's with contacts or glasses. His best VA with glasses could be worse than that. If...

The fact is, no patients will ever observe completely sterile techniques in handling their contacts. It's possible, just way to cumbersome (starting with sterile disposable gloves). So some people...

and you might tell him that the 020ptix is coming soon in his Rx...

oops, sorry i didn't notice the cyl. oh well. If his corneas are thick enough, you might suggest lasik.

You might consider Rxing Night and Days for him. At least they are approved for that kind of regimen. Tell him, sorry, no colors available yet.

If you close one eye and center your "sweet spot" on a large page of print, then close the other and you have to move your head significantly to find it's sweet spot, the p.d.s and/or the seg heights...

But if you do, make sure you send all oakley jobs to the oakley lab!!!!!

I learned the hard way. Do NOT inflict oakley jobs on your regular lab!

Trifocals work just fine, and if your doc thinks "no one likes" them, he is flat wrong. And yes, you can switch between bi and pal without a big problem.

I'm beginning t like the Hoya Tact because it gives good distance vision along with great int and near vision. Unfortunately it comes only in cr39 now, and the patient wanted drilled rimless, so I...

i have a computer user who's Rx is +1.00 add +2.00 o.u. and needs a drillable near vision lens, so I guess shamir poly office is the one to use. Any tips on prescribing for these, or do your just...

I think the vasoconstrictor is the culprit, and you should get her off of it asap, and I prefer cold turkey to "weaning". You might use a weak steroid for a while (like alrex) and wean her off that...

That caught my eye. It appears that you dispensed 3 months of lenses and wanted her to return in 6 months. That doesn't seem to add up. If you wanted to see her in 6 months, why not dispense 6...