I was told that the WaveLight wavefront “optimized” Excimer Laser is more precise than the the VISX Star S4 CustomVue Excimer Laser system. Is that true?
Both Excimer Laser systems are based on wavefront measurement technology. The WaveLight Excimer averages wavefront data from a large sample of human eyes to determine your “wavefront” treatment. The WaveLight uses a “one-size-fits-all” wavefront treatment profile. The WaveLight Excimer does not custom treat each eye based on the unique wavefront profile for that eye. The VISX CustomeVue Wavefront system actually measures your eye and maps the unique, specific “higher order aberration” (HOA) profile for your eye. The VISX Wavefront system generates a specific wavefront treatment profile each patient. No two eyes are identical and the VISX system identifies, and treats the unique wavefront higher-order-aberration pattern for each eye. The WaveLight Excimer Laser does not custom treat each eye. Is this significant? In a study presented at the 2008 American Academy of Ophthalmology meeting Nov 7, 2008 in Atlanta, Jack Holladay M.D. presented the results of a study comparing the results of