Night Time Vision and LASIK- New LASIK Lasers Improve Night Vision, Reduce Halo and Glare
Night time halos and glare have been a common concern for patients considering LASIK. Early on, in the history of LASIK surgery, it was expected that some patients would have some increase in halo and glare at night. Lasers designed to perform traditional treatments and even wavefront guided treatments tend to flatten the cornea and induce or create spherical aberration. Finally, new lasers (Allegretto Wave® and Zeiss MEL80®) have been designed from the ground up to incorporate wavefront principles in every treatment, and maintain the round prolate curve to the cornea rather than flattening it. These lasers can preserve or improve quality of vision in regards to glare and night driving glare providing better vision both day and night. The key is the ability of these new lasers to perform a wavefront optimized procedure. The use of wavefront optimized ablation prevents or reduces the induction of spherical aberrations. This results in a better night vision and less sensitivity to glare. The natural shape of the human cornea is aspheric. This means that all light rays meet in one sharp focus point. The Allegretto Wave® and Zeiss MEL80® laser systems perform an ablation with the objective of maintaining a natural postoperative corneal shape, thereby preserving the cornea’s asphericity. Every treatment is customized to the patient’s individual refraction and corneal curvature.
In the Allegretto Wave FDA trials, patients who have had their vision corrected with a wavefront optimized treatment generally reported night time vision quality to be as good as or better than before LASIK. The doctors at Hoopes Vision were early adopters of this new technology, and are the highest volume Allegretto Wave® users in the country. Dr. Phillip Hoopes notes “We obtained our Allegretto Wave® laser in August of 2004, and soon replaced it with the faster Allegretto Wave EyeQ 400®. Our results, using newer wavefront optimized lasers, have been the best I have seen. Not only are patients generally very happy with their vision both day and night, but the need for enhancement procedures to be done later on has dropped to nearly two percent.” The company Alcon Laboratories seems to share Dr. Hoopes’ view. They have been impressed enough with the wavefront optimized technology that in 2008 they purchased Wavelight (the manufacturers of the Allegretto Wave®) and will be soon replacing their LadarVision® line of excimer lasers with the Allegretto Wave.
To see if wavefront optimized technology is right for you, please call (801)568-0200 and schedule a free consultation with a doctor at Hoopes Vision.