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!

More Articles

Am I A Good Candidate For Lasik?

... to be effective if the eye shape remains constant after surgery. One comment about age cutoffs should be made with regard to Lasik surgery. There is no maximum age, as many patients in their fifties to their eighties have had a very successful Lasik procedure. The main consideration in these cases is ... 

I Remember My Lasik Procedure

... have noticed that most of the posting are from people whose Lasik vision correction was recent and did not go according to plan. I thought I might give my perspective on my Lasik adventure. First, let me start with my current vision situation, and then work backwards to the point before Lasik where I ... 

Eye Care After A Lasik Procedure

... and the staff. On the day of the procedure, a member of the staff should very carefully go over exactly what steps should be done to encourage optimal eye health and healing after the Lasik operation. One thing that the patient should ask is what side effects are to be expected directly after the Lasik ... 

My Grandfather And Lasik

... family think that he did. What a character. Granddad is one that always enjoys new gadgets, people's sympathy, and the chance to tell another story to anyone willing to listen. It almost seems that the Lasik procedure was tailor made for him, especially since his Lasik operation was essentially trouble ... 

My Intralasik Experience

... understand all of the Lasik arguments with regard to this, but I think you should discuss the various Lasik options with the physician. They do vary in cost also. Before I talk about the procedure itself, let me give a bird's eye view of myself as a Lasik candidate. In short, spectacular! Seriously, all ...