Questions regarding Hyper Aspheric lenses

[jgiron@rchsd.org]

I am hoping some one can help me. I have a 9yr. old patient that is
aphakic. He has been wearing spectacle lenses that are the hyper apheric
lenses. These hyper asheric lenses are no longer made. His hyper aspheric lenses have an Rx of +19.75 +1.25 x90 with a +3.00 add.They were very light weight and very thin. Now that the manufacturers are not making hyper asheric lenses anymore, the weight and thickness of his lenses have more than doubled. My patient's father has asked me to inquire what happened to the equipment that made the hyper asheric lenses? Also does any one have any lens blanks that could be used to surface these hyper aspheric lenses ? or are the hyper apheric lenses like the dinosaur- just gone forever? I am on a mission to get the lens manufactureres to rethink this process. Not everyone is getting implants after cataract surgery and the hyper asheric lenses were a true blessing.
:cry:thank you joanie

[DocInChina]

Free form should be able to handle this well.

[Fezz]

Check with Signet Armorlite, Inc. they still have it listed in the Lenses Product Guide(Frames)

www.signetarmorlite.com (http://www.signetarmorlite.com)

1-800-759-0075

[DragonLensmanWV]

Even though as Fezz points out, you can still get the hyper-aspheric, your lab might not be able to produce them. Ask them again, they should be available. If not, ask them if they can supply you with Welsh 4-drop lenses, a similar product.
Or at least Essilor Super Modular aspheric lenses.

[Fezz]

You can also check with Aire-O-Lite! Lots of specials there!


www.aire-o-lite-optical.com (http://www.aire-o-lite-optical.com)

1-800-654-6545

[Fezz]

If not, ask them if they can supply you with Welsh 4-drop lenses, a similar product.
Or at least Essilor Super Modular aspheric lenses.

I'm not sure if this is an option? They list only one BC (+11.25) with power up to +17.50. Maybe they have other bases, just not listed.


:cheers::cheers::cheers::cheers:

[keithbenjamin]

Sadly, the manufacturers are disregarding this market. The hyper-aspheric flat tops have been discontinued. Round segs are still available, but the Rx is out of range w/out special surfacing (i.e saddleback which we could do). Another option is an aspheric lenticular, which might work out best given the right frame PD and eyesize.

-Keith

[DragonLensmanWV]

I'm not sure if this is an option? They list only one BC (+11.25) with power up to +17.50. Maybe they have other bases, just not listed.


:cheers::cheers::cheers::cheers:

Hmmm - they used to come up to around a +17.50 base IIRC. I think I have an odd +16.50 BC lens lying around. Might be discontinued.

[jgiron@rchsd.org]

do you know anyone who might want to take on this project? i do not surface lenses. i have done cutting & edging in the past. the father of my patient is wanting to help keep this sort of lens around for the future (he is young and will assuridly be needing many different rx.s over his life time).
what happened to any lens blanks that were housed in the wherehouse when they stopped making them? we thought if we could buy up those blanks and save them for his future.
joanie

[nickrock]

...but has an aspheric contact lens been considered for this young aphake. It sure would be more comfortable vision. Is he bilaterally aphakic?
Just out of curiosity.

Also, is seems as though the Welsh-4 Drop hasn't been around for a long time. Who made the Hyper-Aspheric semi-finished blank anyway?

[irjoanie@cox.net]

however, i still have a patient in desperate needs of this hyper apheric bifocal (preferably in +14.00 BC).
He is young, He has contact lenses but, he prefers the vision he gets with the spectacles and besides his eyes get so red and really dry with the contact lenses. He is my contact lens patient as well so i know he was fit by the best! hahaha (we all have to pat our selves on the back now & then) I spoke a while back on the phone to some folks from laramyK lab. I was hoping those kind & extremely knowledgeable people would read this and e-mail me back at irjoanie@cox.net
i have a lab that will cut & edge but i really need to get this young guy set up.
His parents are not eager to have IOL's put in because the Dr.'s can't promise he will get the 20/20 Va's he has been getting with his very scratched spectacles. Yes, i said spectacles. He gets about 20/30 with the contact lenses. I hope some one hears this cry for help and responds.
Thanks everyone,
Joanie

[TLG]

I have no information to offer, but....

WELCOME TO OPTIBOARD!!

[irjoanie@cox.net]

Yes he is a bilateral aphakic, He is about 13 years old now, very gifted in the brain department as well as adorable in glasses or contact lenses. I think the lens blank was made by younger.
I hope you all understand that you just can't take a teenager from a thickness of something like 12mm and expect him to adapt and accept a 28mm thickness lens.
I know you all see where i am coming from, I would be truly handicapping this guy visually and scarring him for the rest of his life morally.
Besides that, he dosn't have enough nose to hold those heavy lenses.
joanie

[thep]

Joanie,
Thanks for your kind words. I sent you an e-mail.
Janet

[rdcoach5]

One of my favorite hyperaspherics for high plus was the Rodenstock Perfaster, which was taken off the market. It , now I am informed is back, but check out Rodenstock's new lens called the Impression Hyperop XS.
http://www.rodenstock.com/rod_web/com/en/content.jsp?id=documents/0000/00/00/4c/19628.xml

[chip anderson]

I be done to bettin you got him in soft aphakic contact lenses which is why he preferrs the spectacle vision. Re-fit with rigid lenses, remember the aphakic eye cannot (very, very rare exceptions) have residual in a rigid lens. Any patient (except some elderly ones that prefer not to see thier wrinkles) would prefer full field vision to anything possible in spectacles. Most even with macular problems prefer 20/30 full field to 20/20 (happens sometimes do to larger image on back of aphakic eye in spectacles).

And I can hear the groans and mounds of advise, but I have 45 years of experience at this with hundreds (maybe thousands) of aphakic patients and find that well fitted, well maintained, well supervised aphakic patient is best fitted with fewer long term negative results in PMMA lenses.

Chip
Chip

[rdcoach5]

Chip, do you like the pmma over gas perm because it doesn't chip as easily and easier to clean? If so, I agree this is so, but in cases of chipping edges, I found the original gas perm CAB to be better.