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    What is SMILE OP?

    We at AugenlasernWELT are proud to be considered one of the most experienced providers of SMILE laser eye treatments in Germany.

    ReLEx SMILE is the most modern, precise and most comfortable laser eye treatment in the world. The introduction of the procedure represents the most significant technological advance in the field of laser eye surgery in the last 10 years.

    This keyhole technology, developed by Carl Zeiss in Germany, ensures a minimally invasive treatment to correct myopia and astigmatism. It combines the proven safety of traditional vision correction techniques with an added level of comfort and potentially greater precision.

    ReLEx® SMILE was recently approved by the FDA, a United States agency responsible for protecting the public health by ensuring the safety, effectiveness and quality of medical devices. This approval was granted following the results of a US study of 328 patients who underwent the SMILE procedure and in response to the excellent success rate achieved by SMILE in global markets including Europe, China, Canada, India, Australia and New Zealand has.

    The SMILE procedure at a glance:

    • The world’s most advanced method in the field of laser eye surgery
    • Uses only one laser (femtosecond laser)
    • The laser’s work as part of the surgical process only takes about 25 seconds per eye.
    • Minimally invasive – no corneal flap & 100% blade-free
    • Minimal inconvenience

    SMILE vision correction – a big step towards better vision

    SMILE is a one-step, minimally invasive procedure that uses the highly focused light of a single, computer-controlled laser to create a precisely cut lenticule (lenticular disk within the cornea), which is separated and removed from the rest of the cornea through a tiny keyhole incision becomes.

    SMILE vision correction is a painless keyhole procedure using a single, highly advanced laser from ZEISS.

    Comfort and lightness

    The laser’s work during the procedure is carried out extremely quickly and only takes 25 seconds. The technology is also designed to make the treatment very comfortable for the patient. Although every person and every eye is different, recovery is generally quick – most people feel extremely good the next day.

    Proven technology

    The SMILE method uses femtosecond laser technology, which has already proven itself in millions of treatments in the field of laser eye surgery. While SMILE is a new laser vision correction procedure, the technology behind it is tried and tested, safe and effective.

    Recommended by the best surgeons in the world

    Surgeons around the world have adopted SMILE as an effective laser eye surgery method. Not only does it deliver excellent visual results. Thanks to the sophisticated keyhole technique, there is only minimal impairment of the corneal nerves, ensuring a quick recovery. In the longer term, this can also help prevent dry eye problems and maintain the strength of the cornea.

    The LASIK method

    The LASIK method is the most commonly used surgical method to correct visual defects. To date, it has been carried out in around 17 million cases worldwide.
    During LASIK surgery, after the preparation of a thin corneal flap, also known as a flap, the cornea under the flap is modeled with an excimer laser in such a way that the ametropia is compensated for. The surgeon then folds the corneal flap back into place.

    The LASIK method can be divided into 2 groups; There is the classic, conventional LASIK and the newer method, FEMTO-LASIK . The main difference between these two methods is that in conventional LASIK the flap is cut with a small knife, the so-called microkeratome, and in FEMTO-second LASIK it is cut with a laser. This makes the FEMTO seconds an all-LASER treatment and therefore more precise and safer.

    The FEMTO-LASIK method:

    femto lasik methodThe importance of the FEMTO-second LASER is clear by the precision and security of its results. A fact that becomes even clearer to us every day. With excellent computer-controlled technology, it minimizes tissue damage in the most important and sensitive step of the operation. While in the classic method this first step is carried out by the surgeon with a microkeratome, the FEMTO second LASER now takes care of this with micrometer precision. This reduces the source of error by an important percentage.

    FEMTO second laser technology makes refractive surgery safe and reduces the risk of complications to a minimum. Only through this new FEMTO second laser technology does refractive surgery become one of the safest surgical methods ever. This has also been confirmed by numerous clinical studies.

    The process of the FEMTO-second LASER treatment

    1st step

    The cornea, located in the front area of ​​the eye, is transparent and has the shape of a watch glass. It consists of non-perfused tissue, is on average about half a millimeter thick and acts as a strong lens. After the cornea has been fixed painlessly with a silicone ring, the femtosecond laser separates a very thin circular corneal flap, also known as a flap, about a tenth of a millimeter thick from the frontmost section of the cornea, which is then opened up by the surgeon.

    2nd step

    The now exposed corneal layer is optimized by computer-controlled, targeted removal of the tissue using the excimer laser. The correction of ametropia is caused by the resulting change in the refraction of light on the cornea. This process only takes a few seconds and is completely painless. Involuntary movements of the eyes are immediately detected by the eye tracker system and compensated for by the laser. The flap is then folded back again. Due to adhesion forces, the corneal flap is immediately firmly and precisely in its original position.

    The LASIK method has been used millions of times and is the most frequently used surgical correction of ametropia. The procedure is considered by doctors to be quick, uncomplicated and safe.

    femto lasik laser eye surgery In the past, complications during LASIK surgery mainly occurred when the flap was cut using a very thin knife (microkeratome). The risk of an irregular flap should not be underestimated. This is exactly why Femto-LASIK is recommended, as it eliminates one of the few existing sources of error.

    With FEMTO-LASIK, the first step, i.e. separating the corneal flap, is completely computer-controlled. This results in a flap with exactly the desired thickness and shape as well as the desired diameter. The variable, reliable thickness adjustment made it possible to expand the treatment limits. Using this innovative technology, eyes that were not suitable for conventional LASIK surgery can now be treated in many cases. All microkeratome-related complications have now disappeared. The treatment becomes a pure LASER treatment (all laser). The flap is prepared completely contact-free, precisely and in a tissue-friendly manner at a precisely defined depth. This guarantees more stable flaps with improved healing and higher biochemical stability, as well as a higher quality of visual acuity after surgery.
    In conclusion: more safety for the patient and better quality of vision with the FEMTO-second laser.

    How safe is the conventional LASIK method?

    The conventional LASIK method is safe with minimal risks in well-suited eyes and promises good visual results. To date, it has been carried out millions of times with minimal complication rates. With Intralase, the complication rate due to flap failure is negligibly low. In addition, eyes that were previously inaccessible to LASIK surgery may now be operated on without risk.

    Why is FEMTO-second LASIK more expensive?

    In general, newer technology is more expensive. This is due, on the one hand, to the fact that the devices themselves are expensive to purchase and, secondly, to the fact that additional disposable instruments often have to be used, which causes additional costs. One of these instruments is the docking device. However, most patients find that the cost difference is negligible compared to the significant benefits, such as increased safety and greater success.


    • because the FEMTO-second laser, compared to conventional microkeratomes, offers patients extra safety by eliminating potential complications. The risk of flap slipping and folds, as well as free flaps, button holes and other flap complications is eliminated.
    • because the FEMTO second laser makes it possible to create thinner flaps, meaning that patients with thin corneas now also have the chance to be lasered.
    • Because by preparing thinner flaps with the FEMTO-second laser, patients with more severe visual defects can also undergo excimer laser surgery.
    • Because with the FEMTO second laser, doctors and patients can be sure that the flap formation will be free of complications, and the entire operation will therefore be more relaxed.
    • because FEMTO-second LASIK is completely computer-controlled and therefore carried out with the highest precision.
    • because the FEMTO second laser creates a flap that fits perfectly into its previous place when put back.
    • because the FEMTO second laser treatment is painless and less pressure is placed on the eye during the operation, making the whole procedure more comfortable for the patient.

    Conventional LASIK

    With conventional LASIK surgery, visual defects such as nearsightedness (myopia), farsightedness (hypermetropia) and astigmatism can be effectively and painlessly eliminated using a computer-controlled excimer LASER.
    The surgeon uses a microkeratome to prepare a thin superficial corneal flap. This flap is then carefully opened and the visual defect is corrected using the excimer laser. Finally, the flap is folded back and returned to its original state.
    This method of correcting ametropia has been very popular for many years. However, microkeratome-dependent flap complications can occur, although rarely.
    The LASIK method is recognized by the American FDA (Food and Drug Administration), as well as by the BVA (Professional Association of Ophthalmologists) and by the DOG (German Ophthalmological Society).

    During laser eye surgery

    • There is no need for anesthesia, injections or similar strong anesthetics before surgery. A light sedative tablet and anesthetic eye drops are sufficient.
    • You can also talk to the doctor and stay in touch with him during the operation.
    • Even if you move your eyes during the operation, this will not be a real problem. The eye tracker of the Excimer LASER follows your slightest eye movements and always ensures that the LASER treatment is carried out in the right place.

    After the operation

    • you can go home immediately after the operation.
    • After the operation, it is best to rest at home for a few hours.
    • The safety glasses we provide will protect your eyes from contact.
    • The next day you can slowly resume your usual life.
    • Wearing sunglasses is recommended for the next few days.
    • Under no circumstances should you rub or press your eyes for the next few days
    • Use the eye drops we prescribe as directed.

    Custom LASIK

    Custom LASIK is currently the most advanced technology for excimer laser treatment that is individually tailored to each patient. Using the newly developed wavefront devices used, each eye can be specifically measured down to the smallest detail and the data can be sent directly to the laser device. The laser beams are then controlled directly by the wavefront data.
    The Custom LASIK method is the only method that offers the potential to potentially see better than with glasses or contact lenses, because the wavefront device precisely measures almost every point in the eye, which then creates an accurate mapping of the entire eye . The accuracy of this data is approximately twenty-five times higher than that of a conventional map. All irregularities of the entire eye, even those that could not be measured before, can now be measured with great accuracy.
    The cornea of ​​our eyes is aspherical, which means it is particularly curved so that all light rays entering the eye meet in a sharp focus on the retina. This aspherical curvature can be maintained through wavefront treatment or optimized ablation. Higher-order aberrations therefore remain unchanged or are sometimes even weakened in their effect. With conventional excimer laser therapy, however, higher-order aberrations can even be induced. This also results in the advantages of custom LASIK and optimized ablation.
    The chance of seeing 100 percent after the operation is higher and there may even be a chance of being able to see better than 100 percent or before with glasses or contact lenses. When compared with conventional laser therapy, there are negligible changes in contrast vision, night vision is of much higher quality and the sensitivity to light (glare) and the sensation of halos is significantly lower.
    However, more healthy corneal tissue is removed during custom LASIK than during FEMTO-LASIK without wavefront-guided ablation. This difference is approximately 30µm and should not be neglected, especially with thinner corneas. This means that custom LASIK cannot be performed on all patients and for patients without or with a small number of higher-order aberrations, optimized ablation with different zones is even better.

    Topography-guided LASIK

    Topography-guided LASIK is primarily used to treat patients who, after previous laser treatment, have a decentering of the treatment zone, a treatment zone that could be enlarged for optimal vision, or irregular ablation. This method may also be able to treat patients with corneal scars and central corneal irregularities or after radial keratotomy or corneal transplantation.

    • temporary irritation of the eyes, with slight burning and foreign body sensation.
    • temporary visual disturbances in the form of blurred vision and fluctuations in vision.
    • the need for reading glasses from the age of 40.
    • are normal conditions after a successful excimer laser treatment!