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Published on: September 20, 2024
Keratorefractive lenticule extraction for myopia and myopic astigmatism using a 2 MHz femtosecond laser: 12-month
Anke Messerschmidt-Roth1, Martin Salheiser, Walter Sekundo
1From the Department of Ophthalmology, University Hospital Marburg (UKGM), Philipps University of Marburg, Marburg, Germany (Messerschmidt-Roth, Salheiser, Sekundo); Department of Ophthalmology, Johannes Gutenberg University of Mainz, Mainz, Germany (Wagner).
Purpose:
To report refractive changes between 3 months and 12 months after keratorefractive lenticule extraction (KLEx) using the VisuMax 800 femtosecond laser in a retrospective monocenter study.
Setting:
University Hospital Gießen and Marburg, Department of Ophthalmology, Philipps University of Marburg, Germany.
Design:
The 3-month data were collected as part of a prospective, nonrandomized, multicenter, international postmarket clinical follow-up study for the VisuMax 800. The 12-month follow-up was conducted retrospectively at a single center.
Methods:
90 eyes of 45 patients with myopia up to -10.00 diopters (D) and astigmatism up to -3.00 D underwent KLEx. Postoperative examinations were performed at 3 and 12 months.
Results:
At 12 months, 36 patients (80%) completed follow-up. Mean preoperative spherical equivalent (SEQ) was -4.08 ± 2.04 D. Preoperative corrected distance visual acuity (CDVA) was ≥20/20 in 97% of eyes. At 3 months, uncorrected distance visual acuity (UDVA) was ≥20/20 in 89% and ≥20/25 in 99%. SEQ accuracy was within ±0.50 D in 94% and ±1.00 D in 100% of eyes (mean SEQ: 0.11 D). At 12 months, UDVA remained ≥20/20 in 89%, and SEQ accuracy within ±0.50 D in 96% (mean SEQ: 0.06 D). No significant CDVA loss was observed. Minor variations in astigmatism, satisfaction, and ocular surface disease index scores between 3 months and 12 months were not statistically significant ( P > .05), confirming overall refractive and subjective stability.
Conclusions:
KLEx with the VisuMax 800 yields excellent and stable visual and refractive outcomes with high patient satisfaction and spectacle independence for myopia and myopic astigmatism.
