SmartSight Nova & CenTrax®: sharper, more precise, safer. The next generation of laser eye surgery is here

Author: Dr. Victor Derhartunian 26 August 2025

Read a few lines on your smartphone – and suddenly everything blurs. The text dances slightly, the letters appear to be in a fog. You rub your eyes. It didn’t used to be like this, did it? Welcome to the world with visual defects – and, thanks to SmartSight Nova & CenTrax®, to the new era of refractive surgery using lenticule extraction.

What exciting insights are there?

  • What are the specific benefits of the upgrade for patients? Even clearer vision, less glare at night, shorter recovery time – and even minimal visual defects are corrected.
  • How does Nova & CenTrax® work? It recognizes the visual center of your vision and adjusts the laser in real time. Even with the smallest movements.
  • Is the procedure safer than before? Yes! Real-time centering and optimized laser pulse distribution make treatment even safer.
  • What does Dr. Derhartunian think of the new technology? “This is a milestone. Our patients benefit from the highest precision and brilliant visual acuity.”

What is SmartSight – and why is it so popular?

SmartSight is a form of lenticule extraction performed with the SCHWIND laser. Minimally invasive, without flap creation (as with Femto LASIK, for example) and also without large incisions – just a tiny incision. Ideal for correcting short-sightedness (myopia) and astigmatism. Painless, fast and safe.

SmartSight is particularly popular with professionals who want a short downtime, athletes and patients who already suffer from dry eyes.

New at EyeLaser Vienna: SmartSight Nova & CenTrax® – The upgrade for ultimate precision

Imagine you want to cut out a tiny sheet of paper precisely – with a laser. That’s what you need:

  • the correct center (where the cut should start)
  • a steady hand
  • a tool that works precisely, even if the blade moves slightly

And that’s exactly what SmartSight Nova & CenTrax® does. Only not with paper, but with the fine structure of the cornea.

Although SmartSight was already one of the most modern methods of correcting visual defects, it has now become even better. This is because the software in particular has been further developed.

What is SmartSight Nova?

In short: The latest generation of software and hardware from SCHWIND. The aim: even more precise lenticule extraction and even better visual results. And we promise to achieve this goal.

  • Precise focus point: Nova recognizes exactly where in the eye the laser energy needs to be applied – adapted to individual vision.
  • Dynamic optimization: During the procedure, eye movements, pressure changes and the shape of the cornea are taken into account live.
  • In cooperation with CenTrax®, Nova “understands” when the center shifts and then corrects automatically.
  • Fine tuning of the energy distribution: The laser pulses are set in such a way that the surface of the cut is particularly even, smooth and stable.
  • Ultra-light diopters can now also be treated (from as little as 0.5 diopters)

What is CenTrax®?

The great revolution lies in centering. The renowned head of EyeLaser Vienna, Zurich and Swisslaser in Poland aptly describes it as follows:

“CenTrax® automatically adjusts the center of the treatment – in real time, during applanation. With SmartSight, we can now achieve the precision that previously only excimer lasers could.”

The advantages of CenTrax® at a glance:

  • Real-time control of centering (incl. compensation for micromovements)
  • Software-guided centering at the visual center – not just the center of the pupil
  • 0.05 diopter accuracy for sphere and astigmatism
  • Fewer aberrations, fewer halos, fewer residual errors

What exactly was the problem and how is it solved?

Whereas in the past the center of the pupil was simply taken as the center, today we are more precise. Taking the center of the pupil is like automatically taking the frame as the center of a picture without paying attention to the actual subject. This is because the visual center is often slightly off the center of the pupil.

CenTrax® is – literally – a machine for recognizing the true visual center. And then the lasing is adjusted precisely to this point. It’s like having a camera that automatically tracks the subject – even if it shakes or shifts slightly.

Comparison: Classic SmartSight vs. SmartSight Nova & CenTrax®

FeatureClassic SmartSightSmartSight Nova & CenTrax®
CenteringManual by surgeon Real-time, software-guided
Astigmatism correctionUp to medium valuesNow also ultra-fine values
Precision of the correctionVery goodExcellent – up to 0.05 dpt
Visual results Stable and safeEven better contrast vision, less stray light
Suitable from-1 to -10 dpt -1 to -10 dpt
Patients Target groupStandard indicationsEven very low vision defects and even higher demands on visual acuity
Technology Stare-of-the-artNext Level 2025

How exactly does the system work?

  1. Vorbereitung & Mapping:
    1. State-of-the-art tomography & aberrometry data are integrated
  2. Centering with CenTrax®
    1. Automatic correction for applanation
    2. considers visual axes, not just pupil position
  3. Lenticular extraction with SmartSight Nova software
    1. Even more uniform laser pulses
    2. Optimized energy distribution
  4. Minimally invasive removal of the lens
    1. through micorincision – without flap, without large incision
  5. Recovery time
    1. even shorter than before (often 1-2 days)
    2. less glare, less dryness

Who is SmartSight Nova & CenTrax® particularly suitable for?

  • Professionals with high visual requirements
  • People with mild myopia that was previously “non-laserable”
  • Patients with astigmatism from -0.05 dpt to -5 dpt
  • Athletes who value safety
  • All those who want the best of the best for themselves

Dr. Derhartunian says: “We are talking about a laser technology and software that surpasses previous precision – at excimer level, but without flap, without the associated risks and without a long recovery phase .”

For patients, this means more safety, greater visual acuity and a better quality of life.

Is the upgrade worth it or is the classic model enough?

In any case. Don’t get me wrong: the classic SmartSight process is still a top process. But when it comes to fine grinding, minimum residual values or maximum precision – there is no way around SmartSight Nova & CenTrax®.

Nova and CenTrax® are not just a small update, but a leap forward. It combines the best of two worlds:

  • Gentle lenticule extraction without flap.
  • Ultra-precise centering as with an excimer laser process.

If classic SmartSight is a modern smartphone, then SmartSight Nova & CenTrax® is a smartphone with camera gimbal, face detection, auto-focus and real-time image stabilization. It takes the perfect “snapshot” – even if the subject is shaky.

The result: brilliant vision, individually adapted, implemented with high precision – and with less strain on the eye. A real game changer.

Frequently asked questions (FAQs)

Is SmartSight Nova & CenTrax® suitable for me if I only have -0.75 diopters?

Yes, this is precisely why the procedure was developed or expanded. To precisely counter even slight visual defects so that nothing remains of them in the end.

How does CenTrax® differ from other centering systems?

CenTrax® works live during applanation and uses the visual center, not just the center of the pupil. This is currently a unique advantage.

Is the new procedure safe?

Yes – automated centring minimizes the inevitable human inaccuracies. This increases the consistency of safety and results.

Will I have to wait longer for my sight?

The opposite is true. Visual acuity often develops within the first 24-48 hours. With even fewer side effects.

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Author:

Dr. Victor Derhartunian

Nachdem er sein Handwerk von den beiden Pionieren der Laserchirurgie gelernt hat, gehört Dr. Victor Derhartunian zu den führenden Augenlaser-Chirurgen. Er leitet die Praxis in Wien und kann seine Patienten in fünf Sprachen beraten.