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Lasik Surgery Statistics

The Lasik operation can be a wonderful, life-changing option for many people whose vision is less than perfect.  There are several different types of Lasik operations now available, from the original and well documented procedure to Lasik procedures done with three dimensional wavefronts, or done entirely with lasers.  Each of these variations of the Lasik procedure should be discussed with the physician that is to perform the operation.
Like any surgery, Lasik does have the potential for side effects.

Sometimes reading the horror stories of the outcomes of a Lasik procedure can deter people from seriously considering such a choice.  It is also true that the vast numbers of people who have a successful, trouble-free Lasik surgery tend not to report a long and detailed story of their experience, unlike those that have experienced trouble afterward.

However, it is good to know what the possible side effects of the Lasik procedure are, and also the likelihood that one of these side effects will occur for a particular patient.  Just like any medicine we take, each has a possible number of side effects, but we generally assume that the likelihood of a serious side effect is small, and we take the medicine anyway.  This article will hopefully put concerns of the prospective Lasik patient into perspective so that they can calmly and thoughtfully ponder having a Lasik procedure done in the future.

More than one million Lasik procedures are done in the US every year, according to the FDA.  This arm of the national government has accumulated the following statistics for the most common side effects of the Lasik procedure.  These statistics will also vary by the physician performing the surgery, so make sure to get as much information on the prospective Lasik physician as possible.

After Lasik surgery, 1.7 percent of patients experience some glare or sensitivity to light after the operation.   This varies by patient, but this sensitivity is especially noticeable when looking at a bright light, such as a streetlight when walking at night, or other strong light and dark contrast.  Another light related side effect is a halo around a light, and this occurs in 3.5 percent of Lasik patients.

The new, corrected vision can be noticed quickly by some Lasik patients, in as little as a few hours after surgery.  Most patients that have undergone the Lasik procedure find the change is permanent within a few days.  In 2.6 percent of clients that have had a Lasik procedure done, there is persistent visual fluctuation within at least a part of their sphere of vision.

Finally, some patients do not get a fully corrected sphere of vision after their Lasik procedure.  This happens with a small number of clients, and the FDA statistics are that only 3 percent of patients have this effect.  In all or nearly all cases, the physician in charge will perform an additional Lasik procedure to improve this.

This detailing of the major permanent side effects of the Lasik procedure should put any personal horror stories into perspective.  Notice that none of the percentages are above 3 percent, and this should bring comfort to most prospective Lasik clients.  However, it should also motivate them to look carefully at the Lasik eye surgeons personal record.

Stories From the Lasik Surgery Waiting Room

As an experienced Lasik patient I thought I might give a glimpse into the worst part of the Lasik procedure… the waiting room.   I have had a Lasik procedure twice, the second being a follow up since one of my eyes needed additional work after the healing procedure was complete.  I was distinctly less nervous about the second procedure, and observed and talked to a number of the other Lasik clients that were waiting with me.

One was a young woman in her early twenties who talked incessantly trying to keep her mind off of any of the Lasik brochures and information on the table.  She had been thoroughly oriented to both the Lasik operation and post-op procedures, but had brought along a few stuffed animals to keep her company during the operation.  Most Lasik physicians recommend a minimum age of 18 due to sufficient maturity of the eye, but maybe waiting for some emotional maturity might be another factor.  On the other hand, I wondered what I looked and sounded like waiting for my first Lasik operation.

Talking to a few of the other Lasik clients, I realized I was not the only one in for a second Lasik procedure.  Two others were like me in that they did not get sufficient improvement in their vision to satisfy themselves or the Lasik surgeon.  In all of our cases, our first Lasik procedure of several months earlier went well, and none of us were particularly nervous.

It did surprise me, considering that it was 6:30 AM, of the variety of clothing styles of the Lasik clients.  Most of us, considering the hour and the rather frigid temperature of the Lasik operating room and the waiting room, were dressed in snug and warm sweat suits or other comfortable wear.  One Lasik patient was dressed in formal business attire with full makeup.

This puzzled me for at least two reasons: any makeup, lotions, or other things that could get into the eye are forbidden for at least 24 hours before the surgery, and it is highly recommended to go home and sleep as quickly as possible after the Lasik procedure.  The only thing I could figure out was that she wasn’t actually getting a Lasik procedure, but no one else is there at 6:30 AM.  Her dominating and withering look made me decide that any pre-Lasik conversation with her was better left unsaid.

I was probably the fourth person escorted into a waiting room for a final discussion on Lasik post-op procedures, but I could not tell how long I had been waiting.  I think they avoid clocks for a very good reason.  The lady two seats down from me was calm enough about her Lasik procedure to go back to sleep while waiting, which seemed like an eminently sensible idea.

Each patient is offered a mild sedative before the Lasik procedure starts.  It is mainly for psychological purposes, as my first Lasik experience was not painful at all.  I did take it for my first experience, but my own Lasik history and the others I have heard in the waiting room make me think that I don’t need it.  But I take it anyway, just in case.

I hope that this window into a Lasik waiting room helps give the attitude that for most people it is not a dreaded procedure, and for those of us that have had Lasik eye surgery performed, a rather uneventful one.  

What is Wavefront Lasik Eye Surgery ?

The wonderful results of Lasik surgery have been improved by research adding new methods, such as Wavefront technology.  This technology gives a Lasik physician the ability to see and accurately map even slight variations in the surface of the eye.  This gives the physician the ability to more accurately tailor a Lasik operation to the individual, and result in even clearer vision.

The concept behind Wavefront technology was originally developed by astronomers, in order to indicate if a mirror or a lens had slight imperfections in it.  It is very important in astronomy to get near perfect optics in order to clearly see the small light sources million of miles away in the universe.  In the 1970s a sensor was created to electronically check these surfaces, and a type of this sensor is now used in the Wavefront guided Lasik procedures.

The idea to apply this technique, or to use this sensor, to the field of ophthalmology and later to the specific area of Lasik vision correction, was begun in Germany.  The physician Josef Bille began using the sensor in his practice, and this started others to refine the sensor and how it is used and to apply it to Lasik technology.  In 1997 the improved sensor, with greater accuracy and speed, was announced to the Lasik laser manufacturers.  This allowed the companies that manufacture the Lasik equipment to develop tools using the Wavefront concept for each of their own laser systems.

The FDA approved the first Wavefront guided Lasik vision correction system for general use.  Initially, the Wavefront sensor makes a map of the eye’s imperfections, and this map is sent to the laser that is used in the Lasik vision correction portion of the operation.  This allows for precise eye alteration in order for Lasik to present the best vision correction possible.

The Wavefront technology used in Lasik can be described easily at an informal level.  A small, flat sheet of light (called a wavefront) is passed through the eye, reflected off of the retina, and passed back through the eye and is captured by the Wavefront machine.  If the eye were perfect, the light would return as a flat sheet and be captured that way by the Lasik machine.  However, any imperfections changes the way that the light returns, and this is detected by the Wavefront part of the Lasik process.

A number of these small, flat sheets of light are sent into each eye from various directions and the results returned generated a three dimensional map of the eye to be used in the Lasik vision correction process.  In addition to the commonly known problems of nearsightedness, farsightedness, and astigmatism, there are more than 60 other patterns that are known and can possibly be corrected for.

All of this information generated by the Lasik sensor is converted by software into a set of directions to be carried out by the Lasik excimer laser.  Ask your doctor about this exciting advance in Lasik vision correction, and see if this procedure is right for you!

Choosing a good laser eye surgeon

Improving your vision with a Lasik procedure could be one of the greatest gifts you could get for yourself.  However, as my mother used to say, “Your eyes are precious.”  It is important to entrust the Lasik operation to a doctor that you trust and have confidence in.

Let’s begin with three factors that should NOT be the sole reason you select a doctor for the Lasik procedure.  The location of the office is not particularly important, and a number of people travel long distances to have the Lasik procedure done, for a truly professional doctor will only need to be visited two or three times.  Also, cost or the type of Lasik technology used should not be the sole factor.  The range in surgical skill for a Lasik operation does vary, and there is the old saying “you get what you pay for.”  Further, though the newer types of Lasik procedures do have their benefits; many eye doctors in a large metropolitan area often offer two or three Lasik variants.

There are several ways to determine which is the best doctor for you in your area.  One of the qualities to look for in a good Lasik physician is someone who can accurately assess your situation, and advise you if Lasik is even a good choice for you and your lifestyle.  A physician that takes the time to discuss your own physical condition and situation with you is a good indicator that this is a Lasik physician that you can rely on.

Look for a Lasik eye surgeon which has a solid reputation in the area, and has a good track record.  A physician that advertises in a magazine is not a sufficient recommendation to put your trust in that doctor, and needs more investigation before agreeing to have him do your Lasik procedure.  Sometimes a Lasik center with a large advertising campaign and discounted prices may be indicating that the quality of the surgery is not excellent, and this could be a red flag to avoid that center.

A good Lasik doctor should be involved in the entire Lasik process.  As mentioned above, he should take time to assess your particular case and discuss it with you.  Not only should he do the exam, but he should also perform most or all of the preoperative exam, and also should meet with you personally to monitor the success of the procedure at the dates for checkup.  There are stories from some Lasik centers of the patients never seeing the physician again after the operation until they complained strenuously of some particular problem.

Make sure the physician is honest in their assessment of the general Lasik procedure, and his track record in particular.  Ask for individual examples of patients that the physician dissuaded from having the Lasik operation, and why.  Ask how many Lasik procedures the doctor has done in total, and how many in the last two years.  An experienced surgeon should have performed in the neighborhood of 1000 Lasik procedures, with at least 500 of those in the last two years.

Use these questions as a starting point to investigate the Lasik eye centers in your area, and even the highly recommended ones in nearby major metropolitan areas.  It will be time well invested, and the first step to a clearer future.