Tag: Lasik technology

How is Wavefront Technology Used in Lasik Vision Correction?

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 Lasik 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 doctor 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 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.