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Purpose <p>To assess the efficacy of trabecular micro-bypass stents (IS) versus ab interno trabeculotomy (LOT) performed alongside cataract surgery; and to ensure patient comparability across both surgical groups concerning age, intraocular pressure (IOP), medication score, and disease type.</p> Study design <p>Retrospective cohort</p> Methods <p>Overall, 194 eyes were assessed from 107 Japanese patients with open-angle glaucoma or exfoliation glaucoma who received IS plus cataract surgery at Saitama Red Cross Hospital between July 2017 and January 2022. Another 88 eyes were assessed from 58 patients who underwent combined LOT and cataract surgery at the same hospital between January 2018 and December 2019. Both cohorts were followed-up for ≥6 months. Propensity scoring facilitated between-group patient background matching. Overall, 62 eyes per group matched for preoperative characteristics were analyzed.</p> Results <p>Six-month postoperative IOP was 14.50 ± 2.26 and 14.08 ± 2.50 mmHg for IS and LOT, respectively, with medication scores of 1.50 ± 1.17 (IS) and 1.71 ± 1.60 (LOT), indicating no significant differences. The IOP reduction rate was 19.03 ± 13.34% (IS) and 18.94 ± 23.26% (LOT), showing no significant difference. Both groups exhibited similar medication score reductions (-1.11 ± 1.04 [IS], and -0.92 ± 1.47 [LOT]). Preoperative IOP significantly correlated with IOP reduction rate in both procedures. LOT patients experienced more hyphema postoperatively, versus IS patients.</p> Conclusion <p>In eyes with relatively well-controlled preoperative IOP—where either IS or LOT could be reasonably selected—either procedure offers similar surgical outcomes, with comparable postoperative performance and complication rates, except for postoperative hyphema.</p>

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Comparison of the effectiveness between propensity score-matched trabecular micro-bypass stent versus ab interno trabeculotomy

  • 期刊论文

  • 发表日期：

    2026年1月14日

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  • Suguru Nakagawa,
  • Satoru Kanda,
  • Kiyohito Totsuka,
  • Yi-Ning Chen,
  • Kimiko Okinaga,
  • Mitsuko Takamoto,
  • Kiyoshi Ishii

摘要

Purpose

To assess the efficacy of trabecular micro-bypass stents (IS) versus ab interno trabeculotomy (LOT) performed alongside cataract surgery; and to ensure patient comparability across both surgical groups concerning age, intraocular pressure (IOP), medication score, and disease type.

Study design

Retrospective cohort

Methods

Overall, 194 eyes were assessed from 107 Japanese patients with open-angle glaucoma or exfoliation glaucoma who received IS plus cataract surgery at Saitama Red Cross Hospital between July 2017 and January 2022. Another 88 eyes were assessed from 58 patients who underwent combined LOT and cataract surgery at the same hospital between January 2018 and December 2019. Both cohorts were followed-up for ≥6 months. Propensity scoring facilitated between-group patient background matching. Overall, 62 eyes per group matched for preoperative characteristics were analyzed.

Results

Six-month postoperative IOP was 14.50 ± 2.26 and 14.08 ± 2.50 mmHg for IS and LOT, respectively, with medication scores of 1.50 ± 1.17 (IS) and 1.71 ± 1.60 (LOT), indicating no significant differences. The IOP reduction rate was 19.03 ± 13.34% (IS) and 18.94 ± 23.26% (LOT), showing no significant difference. Both groups exhibited similar medication score reductions (-1.11 ± 1.04 [IS], and -0.92 ± 1.47 [LOT]). Preoperative IOP significantly correlated with IOP reduction rate in both procedures. LOT patients experienced more hyphema postoperatively, versus IS patients.

Conclusion

In eyes with relatively well-controlled preoperative IOP—where either IS or LOT could be reasonably selected—either procedure offers similar surgical outcomes, with comparable postoperative performance and complication rates, except for postoperative hyphema.