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Purpose <p>To compare the refractive prediction accuracy of seven no-history intraocular lens (IOL) power calculation formulas in post-myopic laser vision correction (M-LVC) eyes in Japanese patients. </p> Study design <p>Multicenter retrospective case series.</p> Methods <p>This study included patients with previous M-LVC who underwent cataract surgery between 2016 and 2023. IOL power calculation formulas were assessed using measurements from a swept-source optical coherence biometer. Refractive prediction errors were calculated for the Emmetropia Verifying Optical 2.0 (EVO 2.0), Post Myopic LASIK/PRK Hoffer QST (Hoffer QST), and Post-M-LVC PEARL-DGS (PEARL-DGS) formulas. These results were compared with those obtained from the Barrett True-K No History (BTKNH), Haigis-L, Shammas, and ASCRS average formulas. Heteroscedastic testing for root mean square absolute error (RMSAE) was used to evaluate formula performance.</p> Results <p>The study comprised 125 post-LASIK eyes from 89 patients. Only the BTKNH had mean numerical errors not significantly different from zero. The formulas were ranked by absolute prediction error (MAE): ASCRS average (0.42 D), BTKNH (0.43 D), Hoffer QST (0.46 D), Pearl-DGS and Shammas (0.46 D), EVO 2.0 (0.48 D), and Haigis-L (0.51 D). The BTKNH and ASCRS average demonstrated smaller RMSAE compared to Shammas (P &lt; .0001). The Hoffer QST had a smaller RMSAE than Pearl-DGS (P = 0.02).</p> Conclusion <p>The BTKNH, ASCRS average, and Hoffer QST formulas are precise and reliable for improving postoperative refractive outcomes in Japanese patients with a history of M-LVC.</p>

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Accuracy of no-history formulae for intraocular lens power calculation in post-myopic laser vision correction eyes: a multicenter study in Japan

  • 期刊论文

  • 发表日期：

    2025年7月7日

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  • So Goto,
  • Yosai Mori,
  • Hidemasa Torii,
  • Yumi Hasegawa,
  • Takashi Kojima,
  • Kazutaka Kamiya,
  • Takuya Shiba,
  • Kazunori Miyata

摘要

Purpose

To compare the refractive prediction accuracy of seven no-history intraocular lens (IOL) power calculation formulas in post-myopic laser vision correction (M-LVC) eyes in Japanese patients.

Study design

Multicenter retrospective case series.

Methods

This study included patients with previous M-LVC who underwent cataract surgery between 2016 and 2023. IOL power calculation formulas were assessed using measurements from a swept-source optical coherence biometer. Refractive prediction errors were calculated for the Emmetropia Verifying Optical 2.0 (EVO 2.0), Post Myopic LASIK/PRK Hoffer QST (Hoffer QST), and Post-M-LVC PEARL-DGS (PEARL-DGS) formulas. These results were compared with those obtained from the Barrett True-K No History (BTKNH), Haigis-L, Shammas, and ASCRS average formulas. Heteroscedastic testing for root mean square absolute error (RMSAE) was used to evaluate formula performance.

Results

The study comprised 125 post-LASIK eyes from 89 patients. Only the BTKNH had mean numerical errors not significantly different from zero. The formulas were ranked by absolute prediction error (MAE): ASCRS average (0.42 D), BTKNH (0.43 D), Hoffer QST (0.46 D), Pearl-DGS and Shammas (0.46 D), EVO 2.0 (0.48 D), and Haigis-L (0.51 D). The BTKNH and ASCRS average demonstrated smaller RMSAE compared to Shammas (P < .0001). The Hoffer QST had a smaller RMSAE than Pearl-DGS (P = 0.02).

Conclusion

The BTKNH, ASCRS average, and Hoffer QST formulas are precise and reliable for improving postoperative refractive outcomes in Japanese patients with a history of M-LVC.