Photorefractive Keratectomy safe and effective procedure for enhancement of SMILE: Study
Small-incision lenticule extraction (SMILE) is a refractive procedure approved by the United States Food and Drug Administration (FDA) for the correction of myopia and myopic astigmatism. The procedure is performed using the VisuMax Laser System and uses a femtosecond laser to incise and carve a lenticule within the corneal stroma without creating a corneal flap. The lenticule is then excised from the cornea to achieve refractive correction.
As with other refractive surgeries, a subset of SMILE patients requires follow-up enhancement. Enhancement may be required due to a delayed myopic regression or an initial under- or overcorrection. In these cases, the most common enhancement procedures are photorefractive keratectomy (PRK) and LASIK.
This retrospective, single-site study by Moshirfar et al reviewed all cases of primary SMILE at Hoopes Vision in Draper, Utah between March 14, 2017 and April 8, 2022 to identify any cases that required follow-up enhancement. Primary SMILE was performed using Visumax 500 kHz femtosecond laser (Carl Zeiss Meditec, Jena, Germany). All enhancements were performed with alcohol assisted PRK, using a WaveLight EX500 excimer laser (Alcon Laboratories, Inc., Fort Worth, TX).
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