Exposing the LASIK Scam

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Can the Wavefront Challenge be met?
Yes 0%  0%  [ 0 ]
No 100%  100%  [ 12 ]
Total votes : 12
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 Post subject: Re: Good article, Broken Eyes
PostPosted: Fri Jul 28, 2006 10:01 pm 
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avoidlasik wrote:
I used to think wavefront *reduced* aberrations compared to a virgin eye,


That's what they want you to think!

avoidlasik wrote:
but that is false. It "reduces" compared to standard lasik - in other words, standard lasik induces many aberrations, wavefront induces fewer aberrations, hence a "reduction" compared to standard lasik.


avoidlasik, please go to the head of the class!

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 Post subject: Re: Good article, Broken Eyes
PostPosted: Sat Jul 29, 2006 4:06 pm 
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Broken Eyes wrote:
That's what they want you to think!


Before I knew much about lasik, I bought into the hype. :oops: The more I research, the worse LASIK looks.

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Who cares if your lasik surgeon says you are 20/30 or even 20/20 in the day with a high contrast chart? Your vision will be much worse in low light... with distortions! :evil:

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Lasik damages every eye! Lasik induces more aberrations, even so called "wavefront!" Stick to glasses!


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 Post subject:
PostPosted: Mon Aug 28, 2006 11:20 pm 
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OCULAR SURGERY NEWS EUROPE/ASIA-PACIFIC EDITION September 2006

Microkeratome applanation significantly affects predictability of custom LASIK

Treatment plans do not take into account that the preoperative cornea will be significantly changed by the microkeratome cut.

By Michela Cimberle
Quote:
ALICANTE, Spain ? Custom LASIK gives unpredictable results with induction of higher-order aberrations because treatment plans do not take into account the morphological, histological and biomechanical changes of the cornea induced by the microkeratome cut, according to one surgeon.

?Our customized treatments are based on preoperative topography and wavefront maps. But the LASIK flap induces so many changes that the cornea on which we are doing the ablation is a completely different target from the one we had seen initially,? said Paolo Vinciguerra, MD, at the Alicante Refractive International meeting here.


Quote:
In one patient, the comparison between aberrometry before and after a 9.5-mm LASIK cut showed a completely different cornea, with remarkable changes in the astigmatism and induction of spherical aberration, coma and total higher-order aberrations.


Read the entire article at: www.osnsupersite.com

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 Post subject:
PostPosted: Tue Aug 29, 2006 8:52 pm 
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Even wavefront PRK which makes no flap still induces aberrations! Flap lasik induces even more aberrations!

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Lasik damages every eye! Lasik induces more aberrations, even so called "wavefront!" Stick to glasses!


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 Post subject:
PostPosted: Wed Nov 01, 2006 1:48 pm 
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J Refract Surg. 2006 Oct;22(8):754-63.

Topographic- and wavefront-guided customized ablations with the NIDEK-EC5000CXII in LASIK for myopia.

Kermani O, Schmiedt K, Oberheide U, Gerten G.
Augenklinik am Neumarkt, Schildergasse 107-109, D-50667 Koln, Germany. o.kermani@augenportal.de

PURPOSE: To assess refractive outcomes, changes in the total higher order root mean square (RMS) aberration, and changes in higher order wavefront aberrations after LASIK for myopia and myopic astigmatism with the NIDEK Advanced Vision Excimer Laser platform (NAVEX) using either an aspheric or topography-based or whole eye wavefront ablation algorithm. METHODS: This was a retrospective study of 1459 eyes that underwent LASIK for myopia and myopic astigmatism. The mean preoperative spherical equivalent refraction was -4.68 diopters (D) (range: -0.50 to -9.63 D) with astigmatism up to -4.50 D. Treatments were classified into three categories depending on the type of ablation algorithm used--optimized aspheric transition zone (OATz) denoted eyes that underwent aspheric treatment zones; customized aspheric treatment zone (CATz) denoted eyes that underwent customized ablations based on corneal topography; and OPDCAT denoted eyes that underwent customized ablation based on the whole eye wavefront profile. Follow-up data are reported at 3 months (69%) and 12 months (17%) postoperatively. RESULTS: Three months after LASIK, the predictability (10.5 D from target refraction) was 80% for OATz, 91% for CATz, and 76% for OPDCAT. Of all eyes, 96% were within +/- 1.0 D of intended refraction 3 months postoperatively and 100% after 12 months (87% +/- 0.5 D). In the aspheric and custom groups, a notable improvement of uncorrected visual acuity was noted between 3 and 12 months after LASIK. No eye lost >1 line of best spectacle-corrected visual acuity. Mean higher order RMS increased in all groups. CONCLUSIONS: The data support that the treatment of myopia and myopic astigmatism is safe and effective with NAVEX. Customized ablation based on corneal topography rather than on total wavefront error was more predictable.

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 Post subject: No thanks to LASIK
PostPosted: Wed Nov 01, 2006 4:35 pm 
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Every eye experienced a significent increase in HOAs which results in loss of vision in low light conditions. You might see 20/20 on an eyechart in broad daylight but your vision will suck in mild indoor light and be crappy at night. Your eyes will be dry even if you see 20/20. Youll have a flap that never heals. No thanks.

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Lasik damages every eye! Lasik induces more aberrations, even so called "wavefront!" Stick to glasses!


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 Post subject:
PostPosted: Sun Nov 19, 2006 3:28 am 
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http://www.eyeworld.org/article.php?sid=3460
EyeWorld
November 2006

Determining when to hop off the custom-wavefront bandwagon

Quote:
Dr. Lin said many practitioners are under the misconception that custom wavefront is better in all cases. ?When I go to some meetings I hear people talking about how custom wavefront is always better, and that?s not necessarily the case,? he said. In addition to lenticular astigmatism, Dr. Lin intends to highlight cases of noise, which make custom-guided wavefront a poor bet.
He has seen several cases where corneas are so irregular that each of four or five different wavefront maps for the same patient can look completely dissimilar. In such a case, a practitioner should not use any of the maps because they are not reproducible.
With extremely irregular corneas, custom wavefront does not necessarily work because the cornea is so distorted that one cannot have a good reproducible measure, he said. Because the maps are unreliable, it is usually not possible to perform wavefront-driven surgery in these cases.

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"The price good men pay for indifference to public affairs is to be ruled by evil men." Plato


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 Post subject:
PostPosted: Sat Dec 16, 2006 1:49 pm 
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http://www.osnsupersite.com/view.asp?rID=19645

OCULAR SURGERY NEWS U.S. EDITION December 1, 2006

Quote:
?Creation of the flap leads to an unpredictable biomechanical change in the cornea, and the wavefront map is altered in an unpredictable fashion,? Dr. McDonald said.

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"The price good men pay for indifference to public affairs is to be ruled by evil men." Plato


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 Post subject: No surgeon or patient has met the wavefront challenge
PostPosted: Sat Apr 07, 2007 4:07 pm 
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No surgeon or patient has stepped forward to claim that they have met the wavefront challenge. The silence is deafening.

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We can easily forgive a child who is afraid of the dark. The real tragedy of life is when men are afraid of the light. -Plato


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 Post subject:
PostPosted: Thu May 17, 2007 1:56 am 
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http://www.eyeworld.org/article.php?sid=3753

Quote:
?People were led to believe that 20/12 vision was achievable for everybody with Custom ablation,? said Ronald Krueger, M.D., Cleveland. ?It didn?t work perfectly that way, and part of the reason was because of the poorly understood confounding factors of the treatment, such as biomechanics and wound healing.?

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"The price good men pay for indifference to public affairs is to be ruled by evil men." Plato


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 Post subject:
PostPosted: Thu May 17, 2007 2:05 am 
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EyeWorld
April, 2007

http://www.eyeworld.org/article.php?sid=3753

Quote:
These flap-related complications, coupled with less than stellar results when combined with customized ablations, made a number of refractive surgeons question the safety and effectiveness of LASIK.

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"The price good men pay for indifference to public affairs is to be ruled by evil men." Plato


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 Post subject:
PostPosted: Wed Jul 04, 2007 11:35 pm 
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J Refract Surg. 2006 Oct;22(8):746-53.

Customized LASIK treatment for myopia: relationship between preoperative higher order aberrations and refractive outcome.

Subbaram MV, MacRae S, Slade SG, Durrie DS.
University of Rochester, Rochester, NY, USA. venkitms@bausch.com


Quote:
Despite the high percentage (91.5%) of eyes with >/=20/20 visual acuity postoperatively, 82 (24.1%) of 330 eyes had residual refractive errors (spherical equivalent refraction +/-0.50 D) at 6 months postoperatively.

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"The price good men pay for indifference to public affairs is to be ruled by evil men." Plato


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 Post subject:
PostPosted: Sun Aug 12, 2007 9:54 pm 
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The FDA has this to say about wavefront custom LASIK:

http://www.fda.gov/cdrh/LASIK/faq.htm

Quote:
Wavefront adds an automatic measurement of more subtle distortions (called higher order aberrations) than just nearsightedness, farsightedness, and astigmatism corrected by conventional LASIK. However, these ?higher order aberrations? account for only a small amount (probably no more than 10%) of the total refractive error of the average person?s eye. Conventional LASIK increases higher order aberrations. Although wavefront-guided treatments attempt to eliminate higher order aberrations, results from the clinical studies have shown that the average aberrations still increase, but less than they do after conventional LASIK. In a few studies comparing wavefront-guided LASIK to conventional LASIK, a slightly larger percentage of subjects treated with wavefront LASIK achieved 20/20 vision without glasses or contact lenses compared to subjects treated with conventional LASIK. Patient selection (?When is LASIK not for me??) and the experience and competence of the surgeon are still the most important considerations.

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"The price good men pay for indifference to public affairs is to be ruled by evil men." Plato


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 Post subject:
PostPosted: Mon Sep 03, 2007 1:50 pm 
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Customized LASIK Treatment for Myopia Based on Preoperative Manifest Refraction and Higher Order Aberrometry: The Rochester Nomogram
Journal of Refractive Surgery Vol. 23 No. 5 May 2007
Manoj V. Subbaram, BS Optom, PhD; Scott M. MacRae, MD

Quote:
Despite such advanced technology, 24.1% of eyes treated using customized LASIK have postoperative spherical equivalent >+/-0.50 diopters (D), and approximately 8% of these eyes required retreatment.9 The etiology of postoperative refractive error following custom LASIK has been attributed to the corneal healing response10,11 and laser ablation characteristics.12,13

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Broken Eyes

"The price good men pay for indifference to public affairs is to be ruled by evil men." Plato


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 Post subject: Reduced visual quality after LASIK
PostPosted: Tue Sep 04, 2007 1:55 am 
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What fully informed patient would agree to lose visual quality in exchange for the POSSIBILITY of some time without glasses?

Surgeons who market LASIK to 'reduce dependency on glasses' know that LASIK isn't accurate and reduces visual quality. It's a huge deception, because having good correctable vision and healthy corneas is much more important than the ability to be without glasses part time. Patients are legally blinded by these surgeries and disabled by dry eye and chronic eye pain - even with the 'latest technologies'.

Surgeons who claim that they can correct your cornea's natural imperfections with wavefront LASIK treatments are simply not telling the truth.

Optometrists correct cyllinder (nearsightedness or farsightedness) to the nearest quarter of a diopter. With nearly a fourth of wavefront LASIK patients being off plano by half a diopter... well, that's two steps of correction for those folks and we're just talking sphere. Induced and residual regular astigmatism are common and induced higher order aberrations are the rule.

Many surgeons won't retreat patients this close to plano because LASIK is so inaccurate.

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We can easily forgive a child who is afraid of the dark. The real tragedy of life is when men are afraid of the light. -Plato


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