The 60 kHz femtosecond laser and its technology

A femtosecond laser emits ultrashort light pulses of several hundred femtoseconds, or billionths of seconds. Thanks to these ultrashort light pulses and a laser spot size of 1/100 mm, very high energy densities can be achieved in the micrometer range, i.e. in an almost unimaginably small point in human tissue.

The energy of the light beam does not discharge on the corneal surface, as with the Excimer laser, but inside the tissue. There, small bubbles of CO2 (carbon dioxide) and water appear. This laser effect is so precise that surrounding tissue is not affected. A complete cut at one level is made by lining up thousands of these tiny focal points. The resulting tiny gas bubbles join together to form a very precise cut.

As the femtosecond laser transmits light of a wavelength outside the infra-red spectrum, the patient is unable to see the laser beam. Today, the femtosecond laser is primarily used to create the corneal flat, as with Femto-LASIK. The femtosecond laser is an excellent replacement for the microkeratome, which makes the cut with a knife. Through the femtosecond laser, refractive laser treatment has entered a new age.

Of course, at the LASIK Zentrum Pforzheim Dr Haug, the latest technological generation is always employed, along with the latest updates.