Laser surgeries

 Due to our extensive experience gained in the field of refractive surgery, the eye clinic currently only offers two types of corneal refractive laser surgeries since we consider these two techniques the most suitable, the most precise and the safest.

1. 3D laser surgery with the femtosecond laser without creating a lamella (ReLEx smile)

Referred to as the  ReLEx smile technique, the laser using stereotactic navigation creates a lenticule inside the cornea in the area where the cornea receives the least nutrition and has the lowest number of nerve endings. Afterwards the surgeon separates and removes the lenticule through a small incision which is also prepared by the laser. The expected result of this surgery is a modified correction. The advantages of this surgery are undisputable; particularly the following: No flap is created meaning all complications relating to this technique are ruled out, there is no invasion into the surface layers of the cornea so free nerve endings are not interrupted and surgery does not result in reduced sensitivity (hypesthesia) of the cornea. In addition to this, since the surface parts of the cornea remain intact, the patient does not experience photodysphoria, increased lacrimation and dry eye that is virtually always reported for all other techniques and causes discomfort to our patients, particularly at a higher and old age when the production of tears physiologically declines. Regrettably, the use of this technique is limited by the number of dioptres; it can only be performed for a refractory error exceeding 2.5 dioptres and is not suitable for simple astigmatism. This technique may not be used for hypermetropia (long-sightedness).

 

2. Surgery Femto LASIK using a femtosecond laser

Concerning other techniques, we only use the Femto LASIK method in which we use a femtosecond laser to create a lamella with a thickness of 90-110 micrometres. In order to diagnose the defect, we also use the Wavescan method to examine higher-order aberrations, while this examination is performed for each patient. This examination is necessary before every refractive laser surgery since it identifies higher-order aberrations which are considerable in approximately 15 percent of the population and in some cases their omission may result in a worse surgical result than envisaged. After the lamella is separated and pulled back, the epimer laser vaporizes dioptres. It is currently the most prevalent and generally recognized method in developed countries. We perform the surgery with both types of laser (Visumax – MEL Zeiss, Visex); these are combined lasers with a femtosecond head and an excimer head.

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