CustomVue Wavescan



Over six million people have had their vision successfully corrected with conventional laser vision correction procedures, such as PRK and LASIK. However, in spite of its overwhelming success in eliminating one’s dependence on glasses and contact lenses, the risk for glare, halos and night vision problems has kept many people from having this life changing procedure.

Today, the potential for these unwanted side effects has been significantly reduced with the advent of WaveScan technology. Now, Advanced CustomVue Laser Vision Correction is setting the standard for laser vision correction.

Just like a fingerprint, each person’s vision is 100 percent unique to their eyes.  Before these recent advancements in technology, doctors were only able to use standard measurements to correct vision, meaning that prescriptions could only provide a certain level of correction regardless of an individual’s needs.

Advanced CustomVue can measure and correct the unique imperfections of each individual’s vision and provide them with the potential to experience better vision than is possible with glasses or contact lenses……. their Personal Best Vision.               



Since the mid-1800s, doctors have been measuring vision by recording how well a patient could read letters on a standard Snellen Eye Chart.  Doctors consider your vision “normal” if you can identify the letters on the 20/20 line from a distance of 20 feet.  But, scoring 20/20 on your vision exam doesn’t necessarily mean you have good quality of vision, if the letters are not crisp and clear.

Until recent years, conventional laser vision correction, like glasses and contacts, could only correct the visual distortions caused by nearsightedness, farsightedness, and astigmatism.  However, there are other imperfections in your eye’s optical system that may affect the quality or clarity of your vision at night or in low light.  Doctors call these visual distortions “higher order aberration,” and they can cause glare, shadows, halos, and other annoying visual effects.  Unless the distortions are addressed along with nearsightedness, farsightedness and astigmatism, the quality of your vision after laser vision correction may not be ideal, even if you have measurable 20/20 vision.


Night Driving with Aberrrations

Night Driving without Aberrations







In FDA clinical study trials using the Advanced CustomVue WaveScan System, most people were satisfied or very satisfied with their night vision after their Advanced CustomVue Laser procedure, as compared to their prior level of satisfaction using glasses or contact lenses.

WaveScan-based digital technology was originally developed for use in high-powered telescopes to reduce distortions when viewing distant objects in space. Using this technology, Dr. Northam can detect and measure the optical distortions unique to your entire optical system. Light travels in procession of flat sheets known as wavefronts. Gentle wavefront lights enter the eye, pass through the entire optical system (cornea, lens and retina) and are then reflected back into the WaveScan sensors.

The WaveScan System compares the reflected wavefronts with the original, unaltered wavefronts. This produces a fingerprint of your vision, or WavePrint map. This information is then transferred to the VISX STAR S4 IR excimer laser and is used as a guide to reshape the cornea during your laser vision treatment.

On the day of the procedure, anesthetic drops are placed into the eye.  If the patient is a candidate for Advanced CustomVue, their unique correction information is transferred from the WaveScan to the VISX Star S4 IR excimer laser and guides the laser throughout the procedure.  Often, in less than a minute, the cool beam from the laser gently reshapes the cornea, removing microscopic amounts of tissue – less than the thickness of a human hair in most cases – to create a new curvature.

During the procedure, the 3D ACTIVETRAK eye tracker follows the eye’s tiniest movements, and automatically repositions the laser to keep the laser beam focused where Dr. Northam wants it, so one can completely relax during the procedure.

Many patients notice immediate results after Advanced CustomVue with their vision continuing to improve over several days.  Routine post operative care completes the process.