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Introduction <p>SmartSight NOVA using the ATOS platform (SCHWIND eye-tech-solutions GmbH, Kleinostheim, Germany) is a refractive lenticule extraction method with CenTrax-assisted centration. We hypothesized that SmartSight NOVA would provide safe, effective, and predictable 3-month outcomes for myopia and myopic astigmatism while maintaining favorable positional stability relative to the preoperative vertex-centered reference and acceptable higher-order aberration profiles.</p> Methods <p>This retrospective single-center case series included 84 eyes of 42 patients treated with SmartSight NOVA for myopia and myopic astigmatism. Standard refractive surgery outcome analyses were performed at 1 and 3&#xa0;months, including visual acuity, manifest refraction, and stability. Higher-order aberrations, chord <i>μ</i> subgroup analyses, and postoperative center-coordinate stability relative to the preoperative position were also assessed.</p> Results <p>No clinically significant intraoperative or postoperative complications were observed during the 3-month follow-up. Preoperative manifest spherical equivalent was −3.70 ± 1.21 D. At 3&#xa0;months, mean postoperative uncorrected distance visual acuity was 0.006 ± 0.020 logarithm of the minimum angle of resolution (logMAR), and postoperative manifest sphere, cylinder, and spherical equivalent were 0.021 ± 0.311 D, −0.327 ± 0.280 D, and −0.143 ± 0.336 D, respectively. Spherical equivalent was within ± 0.50 diopters (D) in 81.0% of eyes at 1&#xa0;month and 89.3% at 3&#xa0;months, and within ± 1.00 D in 100.0% of eyes at both visits. Postoperative refractive astigmatism was ≤ 0.50 D in 86% of eyes and ≤ 1.00 D in 100% of eyes at 3&#xa0;months. No eyes lost two or more lines of corrected distance visual acuity. Induced higher-order aberrations did not differ significantly among preoperative chord <i>μ</i> groups. Mean displacement magnitude was 0.049 ± 0.028&#xa0;mm, and 92.9% of eyes were within 0.10&#xa0;mm of the preoperative position.</p> Conclusions <p>SmartSight NOVA showed favorable early clinical outcomes at 3&#xa0;months, with good visual and refractive performance, low residual astigmatism, limited higher-order aberration induction, and small postoperative displacement relative to the preoperative vertex-centered reference in most eyes.</p>

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Refractive and Visual Outcomes of SmartSight NOVA Refractive Lenticule Extraction for Myopia and Myopic Astigmatism at 3 Months: a Retrospective Case Series

  • 期刊论文

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  • 发表日期：

    2026年7月1日

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  • Ji Eun Keum,
  • Tae Keun Yoo,
  • Jong-Chan Kim,
  • Jun-Hyung Kim

摘要

Introduction

SmartSight NOVA using the ATOS platform (SCHWIND eye-tech-solutions GmbH, Kleinostheim, Germany) is a refractive lenticule extraction method with CenTrax-assisted centration. We hypothesized that SmartSight NOVA would provide safe, effective, and predictable 3-month outcomes for myopia and myopic astigmatism while maintaining favorable positional stability relative to the preoperative vertex-centered reference and acceptable higher-order aberration profiles.

Methods

This retrospective single-center case series included 84 eyes of 42 patients treated with SmartSight NOVA for myopia and myopic astigmatism. Standard refractive surgery outcome analyses were performed at 1 and 3 months, including visual acuity, manifest refraction, and stability. Higher-order aberrations, chord μ subgroup analyses, and postoperative center-coordinate stability relative to the preoperative position were also assessed.

Results

No clinically significant intraoperative or postoperative complications were observed during the 3-month follow-up. Preoperative manifest spherical equivalent was −3.70 ± 1.21 D. At 3 months, mean postoperative uncorrected distance visual acuity was 0.006 ± 0.020 logarithm of the minimum angle of resolution (logMAR), and postoperative manifest sphere, cylinder, and spherical equivalent were 0.021 ± 0.311 D, −0.327 ± 0.280 D, and −0.143 ± 0.336 D, respectively. Spherical equivalent was within ± 0.50 diopters (D) in 81.0% of eyes at 1 month and 89.3% at 3 months, and within ± 1.00 D in 100.0% of eyes at both visits. Postoperative refractive astigmatism was ≤ 0.50 D in 86% of eyes and ≤ 1.00 D in 100% of eyes at 3 months. No eyes lost two or more lines of corrected distance visual acuity. Induced higher-order aberrations did not differ significantly among preoperative chord μ groups. Mean displacement magnitude was 0.049 ± 0.028 mm, and 92.9% of eyes were within 0.10 mm of the preoperative position.

Conclusions

SmartSight NOVA showed favorable early clinical outcomes at 3 months, with good visual and refractive performance, low residual astigmatism, limited higher-order aberration induction, and small postoperative displacement relative to the preoperative vertex-centered reference in most eyes.