4/25/08 news with Brian Williams. 6 months after LASIK, 20% of patients have worse or significantly worse night vision and dryness complications from LASIK. The FDA study stopped at 6 months.
Carl Zeiss Meditec Introduces the First Femtosecond-Only Laser Vision Correction Procedure at the American Society of …
DUBLIN, CA–(Marketwire – 04/10/10) – ASCRS Booth #1103 — Carl Zeiss Meditec today announced that ReLEx, the first femtosecond-only method of laser vision correction, is now available for sale outside the United States.(1) ReLEx is a new application that allows ophthalmic surgeons to perform a variety of complete laser vision correction procedures using only the VisuMax Femtosecond laser …
It’s been a little over a year since Joseph Schnell, an elevator construction worker from Philadelphia, had LASIK eye surgery to correct his nearsighted vision. Rather than becoming clearer and sharper, though, Schnell’s vision soon was plagued by near-constant glare, halos, starbursts, and double images. The results, he says, have affected his mood–he became depressed shortly after–and he rarely sleeps through the night because of eye pain.
In response to a Food and Drug Administration public forum on LASIK last week, where Schnell and other people shared their experiences with life-altering complications following the procedure, an FDA advisory panel has recommended ways to make warnings of the risks more clear. The panel suggests that photos depicting what people with visual impairment actually see be made available to those considering the surgery, as well as information on conditions such as large pupils and severe nearsightedness, which would disqualify a person from the procedure, and statistics on side effects. The FDA and a number of organizations, including the National Eye Institute and the American Academy of Ophthalmology, have formed a task force to study quality of life post-LASIK and figure out how to minimize problems.
Experts emphasize that serious complication rates are quite rare. Patient satisfaction hovers around 95 percent, according to a worldwide analysis released in March by another task-force member, the American Society of Cataract and Refractive Surgery. Among those remaining, many are simply dissatisfied that LASIK didn’t measure up to their expectations–their vision isn’t quite 20/20, and they still need reading glasses, for example. According to the FDA, only about 1 percent of patients report worse vision and have permanent side effects like eye pain, dry eye, and poor night vision. (Lots of people experience temporary effects like dry eye, glare, and halos.)
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When the operative field is numb, the doctor will use an automated microsurgical instrument called a microkeratome.Malpractice Medical
This tiny instrument will carefully create a thin corneal flap …
which remains hinged to the eye.
Underneath this flap the inner layer of the cornea, called the stroma, is exposed.
Next, your doctor will use a computer to control pulses of cool laser light. These pulses will delicately remove microscopically thin layers of cells from the stroma, Malpractice Medical
By removing tissue in this manner, your doctor will tailor the new shape of your cornea according to the exact nature of your vision problem. The entire procedure usually takes about 5 minutes and is painless.
The corneal flap is then closed and the surface is rinsed.
Following surgery, you’ll be given protective contact lenses to wear for a few days while the corneal flap heals.
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