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Home > Archive > Lasik Eyes Surgery > October 2004 > Cornea-shaping contact lenses damage some eyes
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Cornea-shaping contact lenses damage some eyes
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| Glenn - USAEyes.org 2004-10-18, 2:08 am |
| See related news article at:
http://www.theglobeandmail.com/serv...SES16/TPHealth/
It seems that expressions of concern regarding overnight
orthokeratology are going unheeded. Unfortunately a few reports of
really disastrous results - including one complication requiring
corneal transplant - are cropping up in patients of a wide range of
ages. Fortunately, the number of truly serious complications appear
to be small.
Like LASIK, anyone considering overnight OrthoK should do the research
and consider the potential risks as well as the potential benefits.
If anyone knows of any websites similar to Rebecca's LaserMyEye or our
USAEyes.org that include information about overnight OrthoK, please
post them in this thread.
I know overnight OrthoK is often considered as an alternative to
surgery and a few post-refractive surgery patients have utilized
overnight OrthoK to help with surgery induced problems. I hope the
cure is not worse than the problem.
Glenn Hagele
Executive Director
Council for Refractive Surgery Quality Assurance
Email to glenn dot hagele at usaeyes dot org
http://www.USAEyes.org
http://www.ComplicatedEyes.org
I am not a doctor.
| |
| Dr. Leukoma 2004-10-18, 7:07 am |
| Glenn - USAEyes.org <glenn.hageleSTOPSPAM@USAEyes.org> wrote in
news:dbc6n0t4c2v7al6bbhg7ugrdloatbqpthr@4ax.com:
> See related news article at:
> http://www.theglobeandmail.com/serv...ry/LAC/20041016
> /LENSES16/TPHealth/
>
> It seems that expressions of concern regarding overnight
> orthokeratology are going unheeded. Unfortunately a few reports of
> really disastrous results - including one complication requiring
> corneal transplant - are cropping up in patients of a wide range of
> ages. Fortunately, the number of truly serious complications appear
> to be small.
>
> Like LASIK, anyone considering overnight OrthoK should do the research
> and consider the potential risks as well as the potential benefits.
> If anyone knows of any websites similar to Rebecca's LaserMyEye or our
> USAEyes.org that include information about overnight OrthoK, please
> post them in this thread.
>
> I know overnight OrthoK is often considered as an alternative to
> surgery and a few post-refractive surgery patients have utilized
> overnight OrthoK to help with surgery induced problems. I hope the
> cure is not worse than the problem.
>
Your points about overnight OK are well-taken. At this time, most experts
are advising a "go slow" approach until some of these issues have been
sorted out. It would be a shame if the potential for a safe, non-invasive
refractive procedure was destroyed in its infancy because of carelessness
and lack of fundamental research -- sort of what happened with other more
invasive refractive procedures of yesteryear.
DrG
| |
|
| Glenn - USAEyes.org <glenn.hageleSTOPSPAM@USAEyes.org> wrote in message news:<dbc6n0t4c2v7al6bbhg7ugrdloatbqpthr@4ax.com>...
> See related news article at:
> http://www.theglobeandmail.com/serv...SES16/TPHealth/
>
> It seems that expressions of concern regarding overnight
> orthokeratology are going unheeded. Unfortunately a few reports of
> really disastrous results - including one complication requiring
> corneal transplant - are cropping up in patients of a wide range of
> ages. Fortunately, the number of truly serious complications appear
> to be small.
>
> Like LASIK, anyone considering overnight OrthoK should do the research
> and consider the potential risks as well as the potential benefits.
> If anyone knows of any websites similar to Rebecca's LaserMyEye or our
> USAEyes.org that include information about overnight OrthoK, please
> post them in this thread.
>
My RGP lenses have an unintended OrthoK effect. That is, after
wearing the lenses for 4 hours when I remove them my vision is a good
as it was while I was wearing them. The effect wears off after a few
hours. However the OrthoK effect does not transfer to night vision
problems. As soon as the lenses are out I'm back to damning the LASIK
surgeon who did this to me.
> I know overnight OrthoK is often considered as an alternative to
> surgery and a few post-refractive surgery patients have utilized
> overnight OrthoK to help with surgery induced problems. I hope the
> cure is not worse than the problem.
>
> Glenn Hagele
> Executive Director
> Council for Refractive Surgery Quality Assurance
>
> Email to glenn dot hagele at usaeyes dot org
>
> http://www.USAEyes.org
> http://www.ComplicatedEyes.org
>
> I am not a doctor.
| |
| Ragnar Suomi 2004-10-18, 11:08 am |
| On Mon, 18 Oct 2004 12:04:48 GMT, "Dr. Leukoma"
<drgNOSPAM@leukoma.com> wrote:
>Glenn - USAEyes.org <glenn.hageleSTOPSPAM@USAEyes.org> wrote in
>news:dbc6n0t4c2v7al6bbhg7ugrdloatbqpthr@4ax.com:
>
>
>Your points about overnight OK are well-taken. At this time, most experts
>are advising a "go slow" approach until some of these issues have been
>sorted out. It would be a shame if the potential for a safe, non-invasive
>refractive procedure was destroyed in its infancy because of carelessness
>and lack of fundamental research -- sort of what happened with other more
>invasive refractive procedures of yesteryear.
>
>DrG
Go slow? In it's infancy? Ortho-K has been around for about 50
years. It hasn't made much of an advancement at all.
| |
| Glenn - USAEyes.org 2004-10-18, 7:11 pm |
| >Go slow? In it's infancy? Ortho-K has been around for about 50
>years. It hasn't made much of an advancement at all.
Overnight Ortho-K is a bit different and is being promoted under
several different names. The process is essentially the same as with
traditional Ortho-K, but the FDA approval of overnight lenses has
caused some to promote using ill-fitting lenses during sleep to
reshape the cornea for morning. It seems to be reasonably successful
on astigmatism, low myopes, and possibly low hyperopes, but as the
article shows has its own set of limitations.
Glenn Hagele
Executive Director
Council for Refractive Surgery Quality Assurance
Email to glenn dot hagele at usaeyes dot org
http://www.USAEyes.org
http://www.ComplicatedEyes.org
I am not a doctor.
| |
| Dr. Leukoma 2004-10-18, 7:11 pm |
| Ragnar Suomi <ragnarsuomi@yahoo.com> wrote in
news:dbp7n0hcl1rue368amqgbnub6tnn03i7ln@4ax.com:
>
>
> Go slow? In it's infancy? Ortho-K has been around for about 50
> years. It hasn't made much of an advancement at all.
Straighten up or Glenn will have to come over here and slap you around
again. Maybe Minarik will slap you around a little bit, too, and after
that Sandy can come and kick some sand in your face.
DrG
| |
|
|
"Glenn - USAEyes.org" <glenn.hageleSTOPSPAM@USAEyes.org> schreef in bericht
news:keu7n0lm0kkfl5cisqvbnmq9lg698jik13@4ax.com...
>
> Overnight Ortho-K is a bit different and is being promoted under
> several different names. The process is essentially the same as with
> traditional Ortho-K, but the FDA approval of overnight lenses has
> caused some to promote using ill-fitting lenses during sleep to
> reshape the cornea for morning. It seems to be reasonably successful
> on astigmatism, low myopes, and possibly low hyperopes, but as the
> article shows has its own set of limitations.
>
Glenn, those lenses are diffucult to fit and certainly not ill fitting.
The shape is calculated with a special purpose after having topography done.
In the Netherlands these lenses are used for low myopic eyes and having none
to low astigmatism.
The success rate is about 70%
Ill fitted regular RGP contactlenses might show some of the bigger changes
in refraction as the OK lenses (overhere we call them ''nightlenses").
A contactlensspecialist considers such changes as a sign of a bad fitting.
--
Jan (normally Dutch spoken)
| |
|
| On Mon, 18 Oct 2004 18:28:30 GMT, "Dr. Leukoma" <drg@leukoma.com>
wrote:
>Ragnar Suomi <ragnarsuomi@yahoo.com> wrote in
>news:dbp7n0hcl1rue368amqgbnub6tnn03i7ln@4ax.com:
>
>
>
>Straighten up or Glenn will have to come over here and slap you around
>again. Maybe Minarik will slap you around a little bit, too, and after
>that Sandy can come and kick some sand in your face.
>
>DrG
Here we go again... you drag other people in to hide behind.
I'm not aware that Glenn ever even tried to slap me around - that must
be a fantasy of yours.
Minarik's attacks were some silly that he must have been joking.
As for Sandy, it was her daughter that wants to beat me up, not her.
After about the age of 12, mature people realize that virtually
anybody can put a world of hurt on any other human being if they want
to - so it's inadvisable to get involved in physical altercations.
The only one misbehaving here in the past 2 weeks is you. The regular
malcontents have been behaving.
| |
|
| On Mon, 18 Oct 2004 23:28:56 +0200, <Jan> wrote:
>
>"Glenn - USAEyes.org" <glenn.hageleSTOPSPAM@USAEyes.org> schreef in bericht
>news:keu7n0lm0kkfl5cisqvbnmq9lg698jik13@4ax.com...
>
>Glenn, those lenses are diffucult to fit and certainly not ill fitting.
>The shape is calculated with a special purpose after having topography done.
>In the Netherlands these lenses are used for low myopic eyes and having none
>to low astigmatism.
>The success rate is about 70%
>
>Ill fitted regular RGP contactlenses might show some of the bigger changes
>in refraction as the OK lenses (overhere we call them ''nightlenses").
>A contactlensspecialist considers such changes as a sign of a bad fitting.
I have just a minor comment. Although OK has only recently been FDA
approved for night wear, that was the idea of OK for many years - but
not with the FDA approval. Just the definition of OK alone should
make that obvious.
| |
| Glenn - USAEyes.org 2004-10-18, 10:08 pm |
| One person's ill-fitting contacts is another persons therapeutic
treatment. Your points are all well taken.
Glenn Hagele
Executive Director
Council for Refractive Surgery Quality Assurance
Email to glenn dot hagele at usaeyes dot org
http://www.USAEyes.org
http://www.ComplicatedEyes.org
I am not a doctor.
| |
| serebel 2004-10-18, 10:08 pm |
| crvc@wyoming.com (CHip) wrote in message news:<>
>
> My RGP lenses have an unintended OrthoK effect. That is, after
> wearing the lenses for 4 hours when I remove them my vision is a good
> as it was while I was wearing them. The effect wears off after a few
> hours. However the OrthoK effect does not transfer to night vision
> problems. As soon as the lenses are out I'm back to damning the LASIK
> surgeon who did this to me.
>
I wonder if this effect is because your cornea has a flap as opposed
to a cornea without one.
Dr. G, Glenn? Possible?
SErebel
| |
| Dr. Leukoma 2004-10-18, 10:08 pm |
| RM <rm@yahoo.com> wrote in news:6th8n0dlig54sejg3vckn1k13v4n0lmq8o@4ax.com:
>
> Here we go again... you drag other people in to hide behind.
> I'm not aware that Glenn ever even tried to slap me around - that must
> be a fantasy of yours.
> Minarik's attacks were some silly that he must have been joking.
> As for Sandy, it was her daughter that wants to beat me up, not her.
> After about the age of 12, mature people realize that virtually
> anybody can put a world of hurt on any other human being if they want
> to - so it's inadvisable to get involved in physical altercations.
>
> The only one misbehaving here in the past 2 weeks is you. The regular
> malcontents have been behaving.
The only regular malcontent is you, Ragnar.
Darn, you're still here. Darn, who cares?
DrG
| |
| Dr. Leukoma 2004-10-18, 10:08 pm |
| serebel@aol.com (serebel) wrote in
news:6ddf3bb5.0410181723.654fa44e@posting.google.com:
> crvc@wyoming.com (CHip) wrote in message news:<>
>
>
> I wonder if this effect is because your cornea has a flap as opposed
> to a cornea without one.
> Dr. G, Glenn? Possible?
>
>
> SErebel
>
Not sure. I think that CHip was the poor recipient of a microkeratome
malfunction. In that sense it could be flap-related. There are other
reasons, many of which relate to the mismatch between the pupil and the
treatment zone.
I know that some idiot will probably soon spout off some nonsense about how
there is no correlation between scotopic pupil size, ablation zone, and
night vision disturbances. Let me start my timer. Ready, set, now.
DrG
| |
| Dr. Leukoma 2004-10-18, 10:08 pm |
| crvc@wyoming.com (CHip) wrote in
news:29e4f651.0410180637.1885e60c@posting.google.com:
>
> My RGP lenses have an unintended OrthoK effect. That is, after
> wearing the lenses for 4 hours when I remove them my vision is a good
> as it was while I was wearing them. The effect wears off after a few
> hours. However the OrthoK effect does not transfer to night vision
> problems. As soon as the lenses are out I'm back to damning the LASIK
> surgeon who did this to me.
Actually, this effect happens more often than not, if the lenses are fitted
properly.
DrG
| |
|
|
| Dr. Leukoma 2004-10-18, 10:08 pm |
| Glenn - USAEyes.org <glenn.hageleSTOPSPAM@USAEyes.org> wrote in
news:dbc6n0t4c2v7al6bbhg7ugrdloatbqpthr@4ax.com:
>
> I know overnight OrthoK is often considered as an alternative to
> surgery and a few post-refractive surgery patients have utilized
> overnight OrthoK to help with surgery induced problems. I hope the
> cure is not worse than the problem.
As a matter of fact, there is a Japanese ophthalmologist who presented a
dozen or more case studies of post-RS overnight ortho-k at a conference a
couple of weeks ago. I just fit a post-LASIK patient last week who has
bilateral superiorly-decentered ablations with -1.25D of residual myopia
bilaterally. The first day she wore the lenses she experience the "ortho-
k" effect, and was quite thrilled.
The power of the humble contact lens is quite amazing. I know I could
probably even correct Ragnar's ghosted vision. To what avail I don't know,
considering his mental acuity problem.
DrG
| |
|
|
"Glenn - USAEyes.org" <glenn.hageleSTOPSPAM@USAEyes.org> schreef in bericht
news:b8o8n0tou2k9j1fm3s8m6ku2fmf00q7879@4ax.com...
> One person's ill-fitting contacts is another persons therapeutic
> treatment. Your points are all well taken.
>
> Glenn Hagele
The same as a shoe-size in normal shoes Glenn?
How terrible wrong you are.
OK lenses have a special design and are special made, perfect fitted for the
job, not confection.
It is comparing apples and pears as we are used to say overhere.
--
Jan (normally Dutch spoken)
| |
| nymblz 2004-10-19, 11:10 am |
| As somebody currently undergoing Paragon CRT (ON Ortho-K), I'd say
that like most things, a lot depends on the competency and care of the
doctor, and the honesty of the patient to provide worthwhile feedback.
I'm very fortunate to have an awesome doctor (Dr. Sheth, Cinnaminson,
NJ) who is very compassionate, caring, and honest; we went through
about 5 different lenses for my right eye until we got one that
alleviated excessive drying and still brought my vision into the
desired zone. I suspect some doctors would've been satisfied with the
earlier rough results, but mine was not happy with anything less than
a fit that worked yet was not uncomfortable or dangerous.
The hard thing is getting used to monovision, because I'm 42, but
that's a different issue.
Overall, while there are some nights I'm tired and don't feel like
putting the lenses in, (yet I do), I'm still quite happy with the
results and progress. Every once in a while I catch myself raising
a hand up to adjust my glasses and get a pleasant shock when I realize
they're not there.
Over the long term, I can imagine there would be risks, as there are
with anything that directly contacts the eye, but at least there's no
slicing involved. I have a hard time imagining under what kind of
circumstances, using ortho-K, a corneal transplant would be necessary.
But then, IANAD.
On Mon, 18 Oct 2004 23:28:56 +0200, <Jan> wrote:
>
>"Glenn - USAEyes.org" <glenn.hageleSTOPSPAM@USAEyes.org> schreef in bericht
>news:keu7n0lm0kkfl5cisqvbnmq9lg698jik13@4ax.com...
>
>Glenn, those lenses are diffucult to fit and certainly not ill fitting.
>The shape is calculated with a special purpose after having topography done.
>In the Netherlands these lenses are used for low myopic eyes and having none
>to low astigmatism.
>The success rate is about 70%
>
>Ill fitted regular RGP contactlenses might show some of the bigger changes
>in refraction as the OK lenses (overhere we call them ''nightlenses").
>A contactlensspecialist considers such changes as a sign of a bad fitting.
- NymblZ
| |
|
| serebel@aol.com (serebel) wrote in message news:<6ddf3bb5.0410181723.654fa44e@posting.google.com>...
> crvc@wyoming.com (CHip) wrote in message news:<>
>
>
> I wonder if this effect is because your cornea has a flap as opposed
> to a cornea without one.
> Dr. G, Glenn? Possible?
>
>
> SErebel
In my case both flaps wrinkled. Then one flap fell off as we were
driving away from the clinic. So I guess one eye had a sort of PRK.
Regardless, the visual problems are similar for each eye.
| |
| Ragnar Suomi 2004-10-19, 7:21 pm |
| Assuming what you say is true, you have a right to be outraged and
your surgeon is an incompetent boob. Why don't you tell us who this
clown is so other people can avoid him?
On 19 Oct 2004 10:05:31 -0700, crvc@wyoming.com (CHip) wrote:
>serebel@aol.com (serebel) wrote in message news:<6ddf3bb5.0410181723.654fa44e@posting.google.com>...
>
>
>In my case both flaps wrinkled. Then one flap fell off as we were
>driving away from the clinic. So I guess one eye had a sort of PRK.
>Regardless, the visual problems are similar for each eye.
|
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