Function

• LASIK corrects irregularities in the cornea's shape, so light rays can focus properly on the retina and improve blurry vision, according to MedlinePlus.
  
  

Procedure

• During LASIK, the surgeon makes a small, precise, circular cut in the cornea. The flap is opened, and an excimer laser is used to remove tiny bits of tissue and reshape the cornea.
  
  

Wavefront Technology

• Wavefront or "custom" LASIK is the latest in new technologies, according to AllAboutVision.com. It takes three-dimensional measurements of how your eyes see contrast and images, and provides a customized map for the laser to reshape the cornea.
  
  

Benefits

• Wavefront LASIK improves your vision and ability to see fine details in different levels of light. Chances for achieving 20/20 vision or better are greater than with standard LASIK.
  
  

Warning

• Wavefront LASIK will not resolve all eye defects, and you must be a strong candidate for the procedure based on your corneal thickness and condition.