Femtosecond laser

What is it?

What exactly is the femtosecond laser?

The designation femtosecond laser was derived from the number of pulses per second (pulse / sec) at which such a system works (actually can not be measured in billions of pulses per second). So called femtosecond (1 fsec = 10 ^ -15 sec).

The femtosecond lasers have opened new horizons in the broader field of Corneal surgery as they offer the ability to create incisions with great precision both in size and shape and at the level or point on the cornea where applicable.

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The femto laser technology emits in the infrared band of the spectrum, and, combined with the extremely short time of action and very low power reaching the photodisruption of the tissue. The photodissociation is perceived in the form of microbubbles.


Applications of femtosecond lasers:

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  • creating a horn flap (corneal flap) in refractive LASIK technique
  • corneal biopsy
  • creating intracorneal incisions for the insertion of intracorneal rings and interlamellar lenses for correcting myopia, keratoconus, and hyperopia
  • astigmatism correction with astigmatic corneal incisions and wedge resections
  • cross – through keratoplasty (femto-PKP)
  • partial keratoplasty (femto-DALK)
  • endothelioplasty (femto-DSEK)
  • cataract surgery (anterior capsulorhexis and intraocular photodissociation andliquidification of the core – femtocataract)
  • treating presbyopia cases

Z-LASIK with femtosecond laser

What exactly is the Z-LASIK technique?

Here the flap is formed by using a special laser system (no blade or scalpel comes in contact with the eyes (all-laser LASIK, bladeless LASIK). The smooth method of restoring vision with the LDV of Ziemer femtosecond laser. If you are looking for an accurate, secure and comfortable refractive surgery with laser, the Z-LASIK® laser is your best choice. With the Z-LASIK laser, your vision is corrected using laser from the beginning to the end of surgery. No blade or scalpel will touch your eyes. The risk of complications is reduced compared to the prior techniques and the quality of postoperative vision is better than any other method. Correct your vision in the most gentle manner and benefit from the most innovative technology available today in refractive surgery with laser.

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The experience gained so far with over 700.000 Z-LASIK treatments, has shown that the majority of patients:

during surgery, they did not feel uncomfortable or any pain
gained excellent vision without glasses
they are happier than they expected with the result
see better than the preoperative vision with glasses
would chose this method again and highly recommend it to others


Previously: Creating a flap by mechanical microkeratome blade (traditional LASIK). A traditional method of correcting the eyesight with laser, the LASIK which required a mechanically driven blade to create an incision in the higher layers of the cornea, before starting the correction. Although millions of operations have been done applying this technique, sometimes this blade is likely to generate an uneven surface in the cornea that can affect the quality of vision. Also, many patients have decided not to undergo this procedure because they felt uncomfortable with the idea that a scalpel would touch their eyes.

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Now: Creation of a stem through a femtosecond laser system. For several years it is possible to create the stem using a so-called femtosecond laser. This means that it no longer engages a scalpel in the process. Patients feel more comfortable and the results are clearly better.

Z-LASIK: The future of refractive surgery without a blade

The Z-LASIK is the most advanced method of refractive surgery without blade. This method uses a high-frequency laser, whose beam operates with 100 times less power than the first femtosecond lasers. Never before has refractive surgery been safer, accurate and comfortable for the patient as surgery with Z-LASIK does.