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In late 2014, we introduced the newest form of laser vision correction, SMILE, to our Vision Eye Institute Chatswood clinic as an additional refractive treatment option for our patients. Six years on, we now have a better perspective of the outcomes and true potential of the SMILE surgical vision correction procedure.
Although SMILE had been around for some years, we only decided to introduce the procedure to our Chatswood clinic when evidence-based medical studies showed that it was at least as good as LASIK and potentially had some advantages.
Within the first year, my technique and unit settings underwent continual refinement to produce an easier experience for both surgeon and patient whilst still achieving optimal visual and safety outcomes.
Today, SMILE is considered a smooth procedure that is a joy to perform. From a practical point of view, this is reflected in faster recovery times for patients, which although not quite matching standard LASIK, are significantly improved compared to other vision correction procedures.
In 2016, we moved both our femtosecond (SMILE) laser and our excimer (LASIK) laser into a purpose-built operating theatre with an environmental control system that keeps both temperature and humidity at a very specific level. This has resulted in improved performances of both lasers.
From the beginning, our refractive results were excellent, which confirmed that our decision to transition to the SMILE procedure was the correct one. Another pleasing observation with these developments is that the number of patients achieving post-operative uncorrected vision better than 20/20 has improved.
Although we felt SMILE had great potential, the proposed benefits of the procedure appeared to dominate the moderate-to-high ranges of myopia (short-sightedness). Initially, I only used SMILE for patients with significant short-sightedness (-5D upwards to -10D), but the observed results equalled and then appeared to quickly surpass outcomes achieved through the LASIK procedure. Because of this, I now offer SMILE to patients with myopia as low as -3D.
Of course, both LASIK and PRK/ASLA remain excellent procedures. In recent years, these technologies have also significantly improved. Newer excimer lasers, like those used in the Chatswood clinic, can more accurately treat astigmatism. They also utilise 3D tracking to follow even the smallest eye movement during surgery, ensuring the accuracy of laser placement even if the patient moves slightly.
Six years after the introduction of SMILE, it is performed in just over half of our patients, perfectly reflecting my confidence in the technique. I chose to introduce the SMILE procedure when the published safety and visual outcomes matched LASIK. In these past years, the results have exceeded my expectations. Our patients have a lot to ‘smile’ about!
SMILE® is a registered trademark of Carl Zeiss Meditec
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