Wavefront & Aberration Analyzers
Thanks to the low-speckle characteristics of SLEDs, EXALOS broadband SLED light sources in the wavelength range 750 to 850 nm are used for LASIK systems in order to reduce interference noise of the recorded CCD image.
L aser-Assisted In-Situ Keratomileusis (LASIK) eye surgery has become a common surgical procedure in the last years . During a LASIK procedure the shape of the cornea is altered using an excimer or picoseconds laser source with the idea of reducing or removing a person’s need for glasses or contact lenses.
LASIK surgery systems with a built-in wavefront analysis system allow for extremely precise and individualized procedures. Typically, a so-called Shack-Hartmann wavefront sensor  in combination with a CCD camera is used to measure and correct higher-order ocular wavefront aberrations.
In order to reduce interference speckle noise of the recorded CCD image, a broadband SLED light source in the wavelength range 750 to 850 nm is used.