Frequently asked questions from patients


1. What are the advantages of laser eye surgery over glasses and contacts?

Laser treatment improves your vision permanently. If you wear glasses, you know how they can fog over, slide down your nose, get dirty, and get misplaced. Glasses can also limit your field of view. With contact lenses, there is always the chance that lenses can slip, rub, or fall out if you move your head suddenly, in addition to possible issues like intolerance, infection or allergic reactions.

After successful laser eye treatment, all these are things of the past. You enjoy good vision from the moment you wake up in the morning to the moment you fall asleep at night. The only glasses you’ll still need is sunglasses with UV protection.

2. How modern are SCHWIND AMARIS eye lasers?

SCHWIND is the technology leader and SCHWIND AMARIS lasers are the most modern excimer lasers on the market. SCHWIND AMARIS lasers have much to offer – with their sophisticated features and extraordinary performance, they are the world’s most capable eye lasers. SCHWIND AMARIS lasers set the standards in treatment safety and precision, and lead the field in pulse rate, beam profile, eyetracking, safety and comfort. All this makes the treatment of visual defects and irregularities on the cornea much faster, safer and more precise than was previously possible. The high quality of visual acuity and faster healing after treatment with these lasers have been confirmed in clinical studies.

3. How long has laser eye treatment been in existence? Are there studies on it?

Eye lasering has been done since the 1990s with increasing frequency and is based on tested safety standards. The treatment methods are certified, and ophthalmic surgeons provide a high level of care. Learn more about current treatment methods and study results.

4. Am I a candidate for lasering?

Basically, lasering is an option for anyone over 18 years of age. The viability of laser treatment for you personally depends on the specific structure of your corneas, the type and extent of your vision defects and other factors. Only a qualified ophthalmic surgeon can determine whether laser treatment is advisable for you.

5. After treatment, will I be able to see as well or better than I can now with glasses or contact lenses?

Clinical studies with SCHWIND AMARIS lasers show that in many cases patients see even better after treatment than they did before with glasses or contact lenses. Almost all patients see at least as well after treatment as they did previously with corrective lenses.

6. How can patients have over 100% visual acuity after laser correction with a SCHWIND AMARIS laser?

100% visual acuity is not a maximum amount, but rather a standard of good vision. Visual acuity is measured by the distance at which the eye can distinguish two adjacent points. This is what opticians test for. It is possible to have better than average visual acuity, meaning higher than 100 percent.

7. Is treatment painful?

Treatment with a SCHWIND AMARIS laser is basically painless. Your eye is numbed with eyedrops before treatment. You will probably feel a slight pressure sensation on your eyes, but it is not actual pain. You may also feel like something is in your eye, but that feeling will go away quickly.

8. How long does treatment with a SCHWIND AMARIS laser take?

How long it takes depends on the treatment method. Your doctor can advise you in more detail on this. The actual lasering can take from a few seconds to about a minute, depending on the vision correction involved.

9. Why should I choose treatment with SCHWIND AMARIS technology?

With a SCHWIND AMARIS laser your doctor can work very precisely and achieve a very smooth corneal surface, which aids in the regeneration of the eye and speeds healing.

SCHWIND AMARIS lasers work with the narrowest beam of any excimer laser in use today. The laser beam is extraordinarily fine at just 0.54 mm in diameter. The laser spot diameters used by other systems are typically coarser.

10. What are the advantages of the 1050 Hz eyetracker on SCHWIND AMARIS lasers?

During laser treatment you fixate your eye on a green LED. But even so, your eyes can briefly move involuntarily about 90 micrometres per millisecond in any direction. For the optimum laser eye treatment, continuous tracking of your eye’s position is critical in order to keep the laser properly positioned at all times. The 1050 Hz eyetracker in SCHWIND AMARIS lasers is the most modern version of this technology, and tracks eye movement up to 1050 times per second, in up to 7 dimensions – horizontal and vertical displacement, cyclotorsion, vertical and horizontal rolling, axial displacement, and time. The AMARIS adjusts the laser beam accordingly, making sure it always hits the right spot. Interested in seeing how our 7D eyetracker follows your eye? We explain it in this YouTube video.

11. SCHWIND AMARIS lasers compensate for static and dynamic cyclotorsion – what does that mean?

Cyclotorsion is another word for eye rotation. SCHWIND AMARIS lasers monitor static and dynamic cyclotorsion to detect and compensate for eye rotation. What exactly does that involve?

Static cyclotorsion control: On some people, the eye rotates around the visual axis when they change from a seated to a reclining position. Since preliminary examinations are done with the patient seated, but laser treatment takes place with the patient lying down, measuring this eye rotation and adjusting the laser beam accordingly can be important for getting the best results.

Dynamic cyclotorsion control: The eye can move involuntarily during laser treatment as well. The eyetracker of the SCHWIND AMARIS laser detects this and compensates for rotation during lasering with dynamic cyclotorsion control.

With astigmatism of 1.5 dioptres or more, cyclotorsion control has a major effect on the outcome of treatment. The combination of static and dynamic cyclotorsion control also plays a critical role in the individual treatment of higher-order vision defects.

12. What is the difference between an excimer laser and a femtosecond laser?

Excimer lasers like the SCHWIND AMARIS work in the ultraviolet spectrum and are used on the cornea. Depending on the treatment method, they can model the surface of the cornea (surface treatment) or after a flap has been made and folded to the side. (LASIK).

13. Why do SCHWIND AMARIS laser systems use two different energy levels in laser treatment?

SCHWIND AMARIS laser systems use two energy levels in order to get the optimum combination of high speed and high precision. This Automatic Fluence Level Adjustment technique was developed by SCHWIND researchers and is unique in the field. In complex mathematical simulations, the system determines the optimum energy density for low and high energy beams and the proportion of each needed for the best possible treatment. About 80% of the laser ablation is done at high energy to maximise speed. Then the SCHWIND AMARIS laser automatically switches to lower energy for the remaining 20%, smoothing the cornea in fine detail. In addition, higher-order visual aberrations, which are typically very finely structured, can be corrected much better with lower energy than with higher energy alone.

14. What does the “AMARIS” in SCHWIND AMARIS mean?

AMARIS comes from the Latin “amare,” to love. The verb form “amaris” means “you are loved”.

15. How can I find an ophthalmologist who uses a SCHWIND AMARIS laser or who offers SmartSurfACE treatment?

Just look in our doctor search. For legal reasons, we cannot recommend a doctor to you, but can only give you addresses in your vicinity.

16. Can you tell me what the best laser treatment would be for me?

For legal reasons we can provide only general information. Please consult the ophthalmologist of your choice for an examination and detailed advice on the treatment options appropriate for you.

17. What does laser treatment cost?

The cost varies from country to country. Ask your doctor about the costs of treatment. In most cases health insurers will not reimburse the costs for eye lasering.

18. Can I get a surgery from SCHWIND?

Eye laser surgery may only be performed by ophthalmic surgeons. Here you can find surgeons who work with SCHWIND systems.

19. My questions about SCHWIND AMARIS laser have not been answered.

Please mail us your question!

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