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Clinical outcomes of posterior chamber toric phakic intraocular lens implantation for the correction of high myopic astigmatism in eyes with keratoconus: 6-month follow-up

  • Refractive Surgery
  • Published:
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Abstract

Background

To assess the early clinical outcomes of toric implantable collamer lenses (toric ICL™, STAAR Surgical) for the correction of high myopic astigmatism with keratoconus.

Methods

This study evaluated 27 eyes of 14 patients with spherical equivalents of −10.11 ± 2.46 D (mean ± standard deviation) and astigmatism of −3.03 ± 1.58 D who underwent toric ICL implantation for mild keratoconus. Before, and 1, 3 and 6 months after surgery, we assessed the safety, efficacy, predictability, stability, and adverse events of the surgery.

Results

LogMAR uncorrected visual acuity (UCVA) and LogMAR best spectacle-corrected visual acuity (BSCVA) were −0.09 ± 0.16 and −0.15 ± 0.09 respectively, 6 months after surgery. The safety and efficacy indices were 1.12 ± 0.18 and 1.01 ± 0.25. At 6 months, 85% and 96% of the eyes were within ±0.5 and ±1.0 D respectively of the targeted correction. Manifest refraction changes of 0.00 ± 0.35 D occurred from 1 week to 6 months. No vision-threatening complications occurred during the observation period.

Conclusions

Toric ICL implantation was good in all measures of safety, efficacy, predictability, and stability for the correction of spherical and cylindrical errors in eyes with early keratoconus throughout the 6-month follow-up period, suggesting its viability as a surgical option for the treatment of such eyes.

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Author information

Authors and Affiliations

  1. Department of Ophthalmology, University of Kitasato School of Medicine, 1-15-1 Kitasato, Sagamihara, Kanagawa, 228-8555, Japan

    Kazutaka Kamiya, Kimiya Shimizu & Hidenaga Kobashi

  2. Sanno Hospital, Tokyo, Japan

    Mari Komatsu

  3. Nakamura Eye Clinic, Ibaraki, Japan

    Akio Nakamura

  4. Nagoya Eye Clinic, Aichi, Japan

    Tomoaki Nakamura

  5. Chukyo Insurance Hospital, Aichi, Japan

    Kazuo Ichikawa

Authors
  1. Kazutaka Kamiya
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  2. Kimiya Shimizu
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  3. Hidenaga Kobashi
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  4. Mari Komatsu
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  5. Akio Nakamura
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  6. Tomoaki Nakamura
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  7. Kazuo Ichikawa
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Corresponding author

Correspondence to Kazutaka Kamiya.

Additional information

Dr Shimizu is a consultant to STAAR Surgical. The remaining authors have no commercial or propriety interest in the product or company described in the current article.

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Kamiya, K., Shimizu, K., Kobashi, H. et al. Clinical outcomes of posterior chamber toric phakic intraocular lens implantation for the correction of high myopic astigmatism in eyes with keratoconus: 6-month follow-up. Graefes Arch Clin Exp Ophthalmol 249, 1073–1080 (2011). https://doi.org/10.1007/s00417-010-1540-5

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  • DOI: https://doi.org/10.1007/s00417-010-1540-5

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