The inclusion of femtosecond lasers in refraction error surgery has raised safety to a whole new level, because the flap is no longer required to be made with a mechanical razor (blade), as was the case in the older technology represented by LASIK operations.
The advantage of a femtosecond laser compared to blade technology is – above all – safety. If problems emerge, making the flap with a femtosecond laser is interrupted immediately and a new attempt is already made after a moment. In using a blade, the waiting period is always a minimum of three months.
The flaps made with a traditional micro-blade are significantly thicker and may vary quite considerably from one eye and patient to another when using the same blade. Conversely, the flaps created with a femtosecond laser are much thinner and more even. This has enabled more and more people to get rid of eyeglasses – regardless of the thickness of the cornea.
In FemtoLasik® laser surgery, the surface layer of the eye is not made the same sort of object of strain as what happens when shaving it with a micro-blade. Moreover, the required amount of pressure is much smaller than in using a razor. With a femtosecond laser, the pressurization is similar to when the eye is vigorously rubbed or pressed by hand. This way the side effects of the operation have also been minimized.
Manufactured in Switzerland, the Ziemer FEMTO LDV femtosecond laser represents the most highly advanced technology. It transmits laser pulses at a considerably denser rate than other femtosecond laser equipment. For this reason, the energy used to make the flap as well as the spot size are significantly smaller than with other femtosecond-based lasers.
Due to its low amount of energy, side effects and mechanical tensions on the cornea are as minimal as possible. Owing to the small spot size, the surgery itself can be more precisely, the base of the value is more even, and the cornea is further protected. Protecting the corneal membrane is extremely important with regard to patients who have an exceptionally thin cornea, as this reduces the risk of corneal protuberance.
Ziemer FEMTO LDV transmits laser pulses of very short duration to the desired depth of the cornea at a rate of several million times per second. When laser pulses are delivered with a precision of a thousandth of a millimetre one after the other, exactly the sort of flap wanted forms in the cornea. With a femtosecond laser, completing the flap only takes about 20 seconds.
Natures affixes the flap rather quickly into its former place and position by means of osmotic pressure. Adhesion occurring entirely via the FemtoLasik® method succeeds faster than with the traditional micro-blade method.
Laser surgery does not stop normal refraction error-related change in the eye, so the operation should be performed only after this change has ended. If your vision has continued to change during the last year, there is no sense in having the operation performed. The stoppage of refraction error-related change varies from person to person, but for most people it ends at about the age of 20.
A repeat operation can be performed on almost everyone. An exception concerns those whose cornea is too thin. In these cases, the physician informs them prior to the first operation that repeat surgery is likely to be impossible. For the most part, repeat surgery can be performed, and with the increase in ‘aging eye’ (presbyopia), the strength of monovision must frequently be increased.
Feeling nervous is not an obstacle to surgery. Our professional skilled staff will act as your support during the entire surgical process, providing you with the safest possible experience. If needed, we can also give you a sedative to cover the period of the operation.
Even if you feel tense, our new laser equipment will ensure the safety of the FemtoLasik® method. Whilst correcting refraction errors, the excimer laser eye tracker carefully follows the movements of your eyes. Movement of the eye does not affect the final results achieved. In other words, you can come in for surgery with a quiet mind!