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Evidence of problems is accumulating. Some of the strongest is the growing market for contact lenses designed for people who have undergone LASIK and still have vision problems, some seeing worse than before the surgery. One of the leading post-LASIK lens makers is MedLens Innovations, a Front Royal, Va., company founded in 2000.

Robert Breece, an optometrist and MedLens' president, said his company provides hard contacts to more than 2,500 post-LASIK patients annually and business is increasing about 10 percent every year. Breece said his company serves more than 200 people per year who have been seriously disabled by the surgery.

"I don't get to talk to happy LASIK patients," he said.

By the end of the year, SynergEyes of Carlsbad, Calif., plans to bring to market the first line of contact lenses designed specially for laser eye surgery patients with complications who cannot tolerate hard lenses.

A trial version of the SynergEyes contact lenses have given Paula Cofer, 49, of Tampa, Fla., some relief from dry, itchy eyes and night vision so distorted that she sees up to eight moons.

The specially fitted contacts cost $300 every six months, Cofer said. Contact lenses solution, sterile saline solution, artificial tears and lenses rewetting drops run another $150 to $160 per month.

"Life was very simple then," she said about the 30 years she wore glasses. "Now, it's very complicated."

Limitations of LASIK

Patients with complications are starting to fight back on the Internet and through support groups. Medical research in the past three years has come up with insights about LASIK worrisome enough that some eye surgeons have begun to ease away from the procedure.

"We've learned the limitations of LASIK," said Dr. Stephen Pflugfelder, professor of ophthalmology at Baylor College of Medicine in Houston.

An expert in laser eye surgery for more than 15 years, Pflugfelder is increasingly falling back on an older, less invasive procedure known as photorefractive keratectomy, or PRK, which involves only the surface of the eye.

In the past three years, the number of LASIK procedures at Baylor has dropped from about 70 percent to about 50 percent of all laser eye surgeries.

At Duke, LASIK makes up about 80 percent of all laser eye surgeries. Carlson, head of the Duke Eye Center, is comfortable with that.

"Dry eye hasn't been a big problem," he said.

The university buys the most sophisticated lasers on the market, he said. Patients are screened for risk factors and informed of what they can and cannot expect from LASIK. A surgeon might even do the surgery on one eye at a time.

Those precautions did not prevent Lauranell Burch, a former Duke medical researcher, from suffering a serious complications after undergoing LASIK at the Duke Eye Center.

Burch 47, said that since the surgery March 31, 2004, her eyes sting and burn all the time, her eye tissue is wrinkled like a Ruffles potato chip and her night vision is distorted.

"[The damage] is noticeable and on the front of your mind all your waking hours," Burch said. "There's no escape."

In the winter, she takes an anti-anxiety pill about 15 minutes before she drives home in the dark from her job in Research Triangle Park. She compares the distortions she sees at night, also known as star bursts, to explosions of light without a bang.

Burch cut short her follow-up treatment at Duke, became an avid patients' advocate and started to take on LASIK surgeons on the Internet.

Risks of high volume

All LASIK surgeons make an effort to screen patients, and many turn away patients with obvious risk factors.

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