Best progressive for high minus ?

[rdcoach5]

Rx is -14.50+0.75x090
-14.00+1.00x090 add +1.25 o.u.
Which progressives have you used successfully in this range?
Thanks. I'd like to use a direct digitally surfaced design.

[DragonLensmanWV]

Rx is -14.50+0.75x090
-14.00+1.00x090 add +1.25 o.u.
Which progressives have you used successfully in this range?
Thanks. I'd like to use a direct digitally surfaced design.

Good luck on the digital lenses. I could never get any for me when I was that high a minus. Apparently, their point files will not cover such a high Rx. Sadly, the people who most need it and could benefit the most from digital, cannot get them due to being out of range.

I'd suggest either the Tokai 1.70 progressive or the Hoya ECP or CD (depending on seg height) in their 1.70 index. I wore each of these successfully when I was a -15.


One other point - I think the 1.25 add will be useless in that high of a minus Rx. They will hardly be able to find it. See if the Doc feels easy with bumping that add to a 1.75 or so. Again - voice of experience tells me that - my first add was 1.25 but I could scarcely see it. 1.75 worked OK, but a 2.00 worked better.

[MarcE]

Good advice Dragon.
Even though there won't any vertical prism, I would still fit a short corridor lens. I'm sure Dragon would agree, that with that Rx, any little bit that you can keep it closer to the OC will make the vision clearer.
I think that you will find, as Dragon alluded to, that the Tokia or Summit CD or ECP and GP Wide are probably your only choices in a 1.70 lens.

And since you are probably wondering. Dragon recommended 1.70 instead of 1.74 because of the better ABBE of 1.70. It will probably make a difference in the quality of vision.

I would bet that at a -14.00, a better ABBE material will make more of a positive improvement than a digital 1.74 lens (even though it's not available)

[chip anderson]

As always the best thing you can do for this patient is a rigid bifocal or trifocal lens contact lens. For these people glasses are just something to find thier contact lenses with..

Chip

[peregrinerose]

Contact lenses would be great, if that's an option for this person. The other option, I wouldn't do a bifocal at all, just take advantage of the vertex distance.... moving the glasses away from the eye even a mm or two will essentially provide that add power (I have a -14.00 patient now that does just that instead of getting the progressive with a +2.00 add and he's very happy that way)

[Robert Martellaro]

I would bet that at a -14.00, a better ABBE material will make more of a positive improvement than a digital 1.74 lens (even though it's not available)

That's a bet that you might win.:)

The other option, I wouldn't do a bifocal at all, just take advantage of the vertex distance.... moving the glasses away from the eye

One cm will do it, if you don't mind mouth breathing.:)

Zeiss's Gradal Individual goes up to -17.00 in 1.67.

[DragonLensmanWV]

Contact lenses would be great, if that's an option for this person. The other option, I wouldn't do a bifocal at all, just take advantage of the vertex distance.... moving the glasses away from the eye even a mm or two will essentially provide that add power (I have a -14.00 patient now that does just that instead of getting the progressive with a +2.00 add and he's very happy that way)

Yeah, but it also reduces your image size dramatically. Still, if you hold it close enough...