Custom LASIK, also called wavefront or wavefront-guided LASIK, is
similar to traditional LASIK surgery but offers more individualized and
precise vision correction.
In traditional LASIK, the correction of the laser treatment is based on
your refractive error, which includes myopia, hyperopia, and astigmatism.
With custom LASIK, your doctor uses a wavefront measurement system
to create a 3D map of the path taken by a beam of light as it travels into,
and is reflected out of, your eye. This wavefront map is relayed to a
wavefront-guided laser, letting your doctor customize the surgery to
your eyes.
In addition to treating vision problems that are corrected by glasses or
contact lenses, custom LASIK also treats irregularities known as
higher-order aberrations, which cause problems such as glare, halos,
shadows and poor night vision. If you have these vision problems,
custom LASIK may be an option for you.