Freevis LASIK Centers: iLASIK, Femto-LASIK, Epi-LASIK, Acrysof Cachet Phakic IOL

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Laser Vision Correction

PRK and LASEK, individual Femto-LASIK, ReLEx Smile and Laser refractive lens exchange

  Late 1980s Photorefractive Keratectomy (PRK, LASEK)
  An Excimer laser is used to reshape the cornea and therefore change its refractive power. The ablation occurs on the corneal surface after the outer cell layer, the epithelium, is removed. Today, PRK is usually performed as LASEK.

– Correction is based on prescription
– Relatively long duration of postoperative pain or discomfort
– Slow healing process (4 to 6 weeks with vision fluctuations)
+ Enhancement procedure is possible
     
  1993
Introduction of Laser-in-situ-keratomileusis (LASIK) in Germany
  With LASIK, the area of ablation moved from the surface of the cornea to its stroma: A tiny blade, the so-called microkeratome, is used to cut a thin flap into the cornea. This flap is lifted and the corneal stroma exposed. After the ablation, the flap is folded back.

– Correction is based on prescription
+ Faster healing process, fewer vision fluctuations
+ No pain after the procedure
+ Enhancement procedure is easily possible by lifting the flap
     
  2000 Introduction of the Aberrometer (Wavefront Analysis)
  The aberrometer is a diagnostic device that measures the refractive power of the eye at more than 200 different spots. It produces a "map" which reflects the precise refractive power of the eye for every measured spot. The results are used to customize the LASIK procedure (Wavefront-guided LASIK), resulting in better vision, especially at dawn and dusk.

+ Correction is based over 200 measurements and therefore "customized"
     
  2004 Introduction of the Femtosecond Laser
(Femto-LASIK, All-laser LASIK)
  The femtosecond laser replaces the mechanical microkeratome.

+ "All-Laser-LASIK"
+ Individual shaping of the corneal flap (diameter, thickness, hinge position)
+ Improved healing, faster visual rehabilitation
+ Reduction of "cutting errors"
     
  2007 Monovision LASIK
  Special LASIK procedure to correct presbyopia: One eye is corrected for near vision and the other eye (typically the dominant eye) is corrected for distance vision. For presbyopic patients, Monovision LASIK reduces the need to use reading glasses.
     
  2008 Individual LASIK
Wavefront-guided Femto-LASIK
  The wavefront-guided All-laser LASIK, also called individual Femto-LASIK, is the most modern LASIK procedure available today. iLASIK allows for the first time to customize all steps of the LASIK procedure. This customization allows an individual correction of the refractive error and therefore leads to optimized results.

+ Customized flap creation
+ Customized ablation
+ Optimized results
     
  2011 Laser refractive lens exchange
  The Laser Refractive Lens Exchange is used for correction of severe nearsightedness (- 8 dpt and higher) and severe farsightedness (+ 4 dpt and higher), mostly in combination with presbyopia.

+ Femtosecond laser offers higher precision than manual
   incisions
+ Reduced phaco time (or none at all)
     
  2013 SMILE
  The SMILE procedure is a minimally invasive laser procedure using solely a femtosecond laser to correct myopia with or without astigmatism. The laser creates a refractive lenticule in the intact cornea as well as a small incision through which the lenticule is removed.

+ Flap-less procedure, increase biostability of the cornea
+ No excimer laser needed
- Limited indication (myopia, astigmatism)