Exposing the LASIK Scam

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 Post subject: 41% dry eye at 6 mo. w/superior hinge
PostPosted: Wed Apr 26, 2006 11:39 am 

Joined: Sat Nov 26, 2005 1:23 pm
Posts: 2080
Am J Ophthalmol. 2006 Mar;141(3):438-45.

The incidence and risk factors for developing dry eye after myopic LASIK.

De Paiva CS, Chen Z, Koch DD, Hamill MB, Manuel FK, Hassan SS, Wilhelmus KR, Pflugfelder SC.

Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas.

PURPOSE: To determine the incidence of dry eye and its risk factors after myopic laser-assisted in situ keratomileusis (LASIK).

DESIGN: Single-center, prospective randomized clinical trial of 35 adult patients, aged 24 to 54 years, with myopia undergoing LASIK.

METHODS: setting and study population: Participants were randomized to undergo LASIK with a superior or a nasal hinge flap. They were evaluated at 1 week and 1, 3, and 6 months after surgery. intervention: Bilateral LASIK with either a superior-hinge Hansatome microkeratome (n = 17) or a nasal-hinge Amadeus microkeratome (n = 18). main outcome measures: The criterion for dry eye was a total corneal fluorescein staining score >/=3. Visual acuity, ocular surface parameters, and corneal sensitivity were also analyzed. Cox proportional-hazard regression was used to assess rate ratios (RRs) with 95% confidence intervals.

RESULTS: The incidence of dry eye in the nasal- and superior-hinge group was eight (47.06%) of 17 and nine (52.94%) of 17 at 1 week, seven (38.89%) of 18 and seven (41.18%) of 17 at 1 month, four (25%) of 16 and three (17.65%) of 17 at 3 months, and two (12.50%) of 16 and six (35.29%) of 17 at 6 months, respectively. Dry eye was associated with level of preoperative myopia (RR 0.88/each diopter, P = .04), laser-calculated ablation depth (RR 1.01/mum, P = 0.01), and combined ablation depth and flap thickness (RR 1.01/mum, P = 0.01).

CONCLUSIONS: Dry eye occurs commonly after LASIK surgery in patients with no history of dry eye. The risk of developing dry eye is correlated with the degree of preoperative myopia and the depth of laser treatment.

From the full text:

"The incidence of dry eye for the nasal-hinge group was zero (0%) of 18 at baseline, eight (47.06%) of 17 at 1 week, five (27.78%) of 18 at 1 month, four (25%) of 16 at 3 months, and five (31.25%) of 16 at 6 months. The incidence in eyes with superior hinge flap was zero (0%) of 17, nine (52.94%) of 17, four (23.53%) of 17, four (23.53%) of 17, and seven (41.18%) of 17 at baseline, 1 week, 1 month, 3 months, and 6 months, respectively."

"The incidence of dry eye gradually decreased over the observation period in both groups to a 36.36% overall incidence and a 41.18% incidence in the superior-hinge group at 6 months."
"On the basis of these findings, patients should be counseled about the risk of developing dry eye after LASIK..."

"Dry eye occurs commonly after laser-assisted in situ keratomileusis (LASIK) surgery in patients with no history of dry eye."

Broken Eyes

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

 Post subject: Good article
PostPosted: Sun May 21, 2006 7:01 pm 

Joined: Fri Feb 17, 2006 2:57 am
Posts: 243
The more myopic you are, the higher risk of dry eye since more tissue is ablated so more nerve damage, is that right? The risks of dry eye is more than 4 in 10 overall, is that right? If so very bad and avoid lasik at all costs!!!!!!!!!

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

 Post subject: Cut deeper, vaporize more nerves = drier eyes
PostPosted: Tue May 23, 2006 5:04 am 

Joined: Mon Nov 14, 2005 4:28 pm
Posts: 643
It's only logical that the larger and deeper the ablation (especially if the flap is thick) the more nerve damage and the drier the resulting eye.

Why corneal refractive surgeons can't grasp such a simple concept and continue slicing and burning healthy eyes is a mystery. What sort of ethical and mental lapses would be required on the part of these surgeons to do such harm?

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