| *Intended for a Canadian audience only |
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| *Intended for a Canadian audience only |
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Whether the first phase of surgery involves IntraLASIK or PRK, is only one half of the decision. Dr. Demong will make a recommendation for the second phase as well. The choice will be either Custom Cornea Wavefront reshaping or Conventional Non-Wavefront reshaping. While the same laser, the LADAR4000 is used for both treatments, it can be operated in either mode. The Custom Cornea Wavefront mode uses a Wavefront generated template to guide the treatment beam while the Conventional Non-Wavefront mode uses a more generalized treatment the surgeon has defined. Dr. Demong uses the Custom Cornea Wavefront mode in almost all cases, reserving Non-Wavefront mode for those individuals outside the FDA/HPB approved range of wavefront treatment.
Custom Cornea Wavefront treatment has been developed to remove fine irregularities in your vision, called higher order aberrations, along with your defocus error - nearsightedness, farsightedness and/or astigmatism. For years, people reported problems with glare, halos and diminished night vision following laser surgery. Some of those problems were related to dryness but others were attributed to higher order aberrations. Until Wavefront technology was developed, surgeons were unable to identify higher order aberrations and most certainly couldn't treat them. Now they can and do if Wavefront treatment is used. In fact, if these fine irregularities exist and non-Wavefront treatment is used, the aberrations may become even more pronounced, resulting in significant risk of decrease in best corrected vision and diminished vision when in dim lighting. By treating higher order abberations in conjunction with the defocus error, Dr. Demong can achieve correction of your distance vision, while improving the quality of your vision as well.
In Custom Cornea mode, the laser delivers the desired treatment using a Wavefront generated template obtained from the Wavefront scan taken at the time of your preoperative assessment. The laser locates landmarks within your eyes and matches them with the template. Then, robust eye tracking technology follows every minute movement of your eyes to ensure the treatment is delivered precisely where it has been defined, within microns of accuracy. In case you're wondering how precise that is, a micron, is 1/1000 of a millimeter. In less than a minute, your vision is permanently reshaped using the most accurate technology possible, freeing you from dependency on corrective lenses.