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Eye Problems Can Develop After LASIK Surgery

LASIK is an incredibly popular eye surgery to correct vision problems such as nearsightedness and farsightedness. But it turns out that LASIK surgery has more short and long-term complications than we realize. Studies show that the persistant "minor problems" (depends on who you ask if they're minor) are more frequent than we realize - up to 55% report symptoms such as dry eyes or visual distortions. But the really serious ones, such as corneal ectasia, and which occur rarely (less than 1%), typically occur a year or two after the LASIK surgery. And unfortunately ectasia can result in total loss of vision.

Sooo... Buyer beware. And before you consider LASIK surgery, please go to the site LASIK Complications to see exactly what can happen in a worse case scenario, read the following NY Times article in full, and this Washington Post article from 2016. This way if you do decide to do the voluntary procedure, at least you will be fully informed. Excerpts from an article by Roni Caryn Rabin in the  NY Times:

Lasik’s Risks Are Coming Into Sharper Focus

Ever since he had Lasik surgery two years ago, Geobanni Ramirez sees everything in triplicate. The surgery he hoped would improve his vision left the 33-year-old graphic artist struggling with extreme light sensitivity, double vision and visual distortions that create halos around bright objects and turn headlights into blinding starbursts. His eyes are so dry and sore that he puts drops in every half-hour; sometimes they burn “like when you’re chopping onions.” His night vision is so poor that going out after dark is treacherous.

But Mr. Ramirez says that as far as his surgeon is concerned, he is a success story. “My vision is considered 20/20, because I see the A’s, B’s and C’s all the way down the chart,” said Mr. Ramirez. “But I see three A’s, three B’s, three C’s.” None of the surgeons he consulted ever warned him he could sustain permanent damage following Lasik, he added. 

The Food and Drug Administration approved the first lasers to correct vision in the 1990s. Roughly 9.5 million Americans have had laser eye surgery, lured by the promise of a quick fix ridding them of nettlesome glasses and contact lenses. There is also a wide perception among patients, fostered by many eye doctors who do the surgery, that the procedure is virtually foolproof.

As far back as 2008, however, patients who had received Lasik and their families testified at an F.D.A. meeting about impaired vision and chronic pain that led to job loss and disability, social isolation, depression — and even suicides. Even now, serious questions remain about both the short- and long-term risks and the complications of this increasingly common procedure.

recent clinical trial by the F.D.A. suggests that the complications experienced by Mr. Ramirez are not uncommon. Nearly half of all people who had healthy eyes before Lasik developed visual aberrations for the first time after the procedure, the trial found. Nearly one-third developed dry eyes, a complication that can cause serious discomfort, for the first time. The authors wrote that “patients undergoing Lasik surgery should be adequately counseled about the possibility of developing new visual symptoms after surgery before undergoing this elective procedure.”

Many ophthalmologists insist Lasik is the safest procedure done on the eye — some say the safest medical procedure, period — and serious complications are “exceedingly rare.” Patients’ vision may regress after surgery, and they may need to use eyeglasses at times, some concede. But most Lasik surgeons maintain that soreness, dry eyes, double vision and other visual aberrations like those suffered by Mr. Ramirez subside within months for most patients.

Surgeons frequently point to the procedure’s popularity as evidence of its success: Lasik was performed on some 700,000 eyes last year, up from 628,724 in 2016, according to Market Scope, a market research company that focuses on the ophthalmic industry.

Yet few studies have followed patients for more than a few months or a year, and many are authored by surgeons with financial ties to manufacturers that make the lasersOne such study, written by the global medical director for a large laser eye-surgery provider, reported high satisfaction rates among patients five years after Lasik. But the study also found that even after all those years, nearly half had dry eyes at least some of the time. Twenty percent had painful or sore eyes, 40 percent were sensitive to light, and one-third had difficulty driving at night or doing work that required seeing well up close.

Lasik surgeons say the procedure has improved over time, and one surgeon’s 2017 analysis of more recent data submitted to the F.D.A. by manufacturers concluded that for many patients, visual problems eventually resolved. Still, a year after surgery, the percentage of the roughly 350 patients who had mild difficulties driving at night had increased slightly to 20 percent, while the percentage with mild glare and halos had more than doubled to about 20 percent in each category. The percentage with mild dryness more than doubled to 40 percent.

Now a vocal cadre of patient advocates is demanding the agency issue strong public warnings about Lasik. The group is led by Morris Waxler, a retired senior F.D.A. official who regrets the role he played in Lasik’s approval over 20 years ago, and Paula Cofer, a patient-turned-advocate who says Lasik destroyed her eyesight and left her with chronic pain.

Ms. Cofer now runs a website, lasikcomplications.com, that features blog posts like “Top 10 Reasons Not to Have Lasik Surgery” and is dedicated to two men who committed suicide after suffering Lasik complications, including Max Burleson Cronin, a 27-year-old veteran.

We want the F.D.A. to warn the public that Lasik injures eyes and causes pain, vision problems and other persistent problems that cannot be solved — and that you don’t get these problems from glasses or contact lenses,” said Dr. Waxler, a former chief of the diagnostic and surgical devices branch in the F.D.A.’s division of ophthalmic devices. He has unsuccessfully petitioned the agency to withdraw the approvals, arguing in his brief that laser manufacturers underreported or misclassified adverse events that occurred during clinical trials.

Other recent studies suggest Lasik patients may also be at increased risk for long-term eye complications, including possibly requiring earlier cataract surgery and developing a serious vision-threatening condition called corneal ectasia. Lasik can also interfere with the detection of glaucoma, or the buildup of pressure within the eye that, if left untreated, can lead to blindness.

Scott Petty, 36, a 3D artist from Houston who developed video games for a living, was diagnosed with corneal ectasia six months after having Lasik surgery. His sight has continued to deteriorate, even after he underwent a new procedure called corneal cross-linking to strengthen his cornea. He is in so much pain that he is “almost suicidal,” he said. “It’s like hot grease is in my eyes, 24-7. I pretty much have to admit my career is over.”

Lasik — short for laser-assisted in situ keratomileusis — eliminates the need for glasses by reshaping the cornea, the clear round dome that covers the front of the eye. The cornea’s function is to focus light on the retina at the back of the eye. Lasik surgeons use an ultraviolet laser to reduce the curvature of the cornea for people who are nearsighted, and to accent it for people who are farsighted. The surgeon first uses a suction ring to flatten the eye in order to cut a flap in the cornea, folding the flap back to reveal the middle section, called the stroma. Then the surgeon uses pulses from a computer-controlled laser to destroy a portion of the stroma, and replaces the flap. The entire procedure, which costs $4,176 on average, is usually over in less than 15 minutes. It is not covered by most health insurance policies because it is considered a cosmetic or elective procedure.

Dr. Cynthia MacKay, one of the few ophthalmologists who has spoken out against the procedure, said the surgery can injure the eye because it severs tiny corneal nerves, thins the cornea and makes it weaker, and permanently alters the shape of the eye.

She said after Lasik, all people lose contrast sensitivity, the ability to distinguish between shades of gray, to some degree. It is an elective procedure, she emphasized, that does not provide any benefits that cannot be obtained with glasses or contact lenses.

Indeed, the F.D.A.’s new clinical trial, carried out with the National Eye Institute and the Navy Refractive Surgery Center and published last year, was the first to report that people who did not have dry eyes or visual aberrations before Lasik were at high risk for developing these problems: 28 percent of these participants developed dry eyes after surgery, and 45 percent reported a new visual aberration three months after surgery. But many of the trial’s 574 participants reported having visual aberrations and dry eyes before surgery, and the study concluded that Lasik slightly reduced the prevalence of these problems.

Three months after surgery, however, glare, halos and double vision were common, affecting 50 to 60 percent of all patients, with up to 5 percent characterizing them as “very” or “extremely” bothersome. Even after six months, some 41 percent of patients reported visual aberrations, with nearly 2 percent — or one in 50 — saying the symptoms presented “a lot of difficulty” or “so much difficulty that I can no longer do some of my usual activities.” And one-quarter of the patients followed six months had mild to severe dry eyesThe authors did not publish findings about other adverse outcomes, like eye pain, difficulty working on a computer and difficulty driving at night, and the raw data has yet to be released as required for publicly funded trials.

The F.D.A. clinical trial did little to resolve the contentious debate about dry-eye disease. Many patients say the term is a misnomer that does not begin to describe the severe eye pain they have continued to experience years after surgery.

While some patients have mild symptoms that can be managed with artificial tears or prescription eyedrops, others have crisscrossed the country seeking relief for pain they say feels like needles or knives in their eyes, and use medication to ease the pain. Katie Enders, 35, a kindergarten teacher in Cleveland, said her 2006 Lasik surgery left her feeling she had “paper cuts in her eyes.” She saw over a dozen doctors and tried several pain medications, finally getting relief from a pain pump implanted in her abdomen that carries a constant infusion of anesthetic up her spine.

Many Lasik surgeons are dismissive of claims of persistent severe pain or call it extraordinarily rare. But ophthalmologists who study pain say their thinking has evolved in recent years, and they now recognize Lasik as one of many surgical procedures that can lead to neuropathic pain, or pain caused by nerve damage.

Other eye surgeries, like cataract surgery, can have the same effect. ....“We have sensory nerves all over our body, and the cornea is one of the most heavily innervated organs in the body, so it is a little more sensitive to nerve damage.” .... Her review paper found that between 20 percent and 55 percent of Lasik patients have persistent dry eyes, defined as lasting at least six months after surgery.

 Credit: FDA (Food and Drug Administration)

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