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Toric implantable collamer lens for moderate to high myopic astigmatism: 3-year follow-up

  • Refractive Surgery
  • Published:
Graefe's Archive for Clinical and Experimental Ophthalmology Aims and scope Submit manuscript

Abstract

Background

To evaluate the 3-year clinical outcomes after toric implantable collamer lens (ICL) implantation for the management of moderate to high myopic astigmatism.

Methods

Thirty-four eyes of 20 patients who underwent toric ICL implantation were reviewed. All eyes completed 3-year follow-up. Uncorrected (UDVA) and corrected (CDVA) distance LogMAR visual acuities, refraction, endothelial cell density (ECD), and surgical complications were evaluated. Vectorial analysis of astigmatic correction was also done.

Results

A significant improvement in UDVA, CDVA, manifest spherical and cylindrical refraction was observed at 1 week and remained stable after 3 years. Twenty-six eyes (76.5 %) gained lines of CDVA, and two eyes (5.9 %) showed a loss of 1 line of CDVA. The spherical equivalent (SE) was within ±0.50 D of emmetropia in 18 eyes (52.9 %) and within ±1.00 D in 28 eyes (82.4 %). Differences between target-induced astigmatism (TIA) and surgically-induced astigmatism (SIA) were statistically significant (p < 0.01), and a trend to undercorrection of the refractive astigmatism was present after 3 years. The magnitude of flattening effect (FE) was found to be significantly lower than the magnitude of TIA (p < 0.01). The magnitude of the torque vector was always positive, with a value below 0.50 D in all cases. No vision-threatening complications were observed during the follow-up.

Conclusion

Toric ICL implantation is an effective and safe surgical option that provides a relatively predictable and stable refractive correction of myopic astigmatism. Further improvements are needed to minimize the degree of undercorrection.

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Conflicts of interest

The authors have no financial or proprietary interest in any product, method, or material described herein.

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Authors and Affiliations

  1. Kartal Training and Research Hospital, Istanbul, Turkey

    Esin Sogutlu Sari, Anil Kubaloglu, Pinar Sorgun Evcili, Isil Kutlutürk & Yusuf Ozerturk

  2. Departamento de Óptica, Farmacología y Anatomía, Universidad de Alicante, San Vicente del Raspeig, Spain

    David P. Pinero

  3. Foundation for the Visual Quality (FUNCAVIS, Fundación para la Calidad Visual), San Vicente del Raspeig, Alicante, Spain

    David P. Pinero

  4. Medical Faculty, Ophthalmology Department, Bezmialem University, Istanbul, Turkey

    Arif Koytak

  5. Optics, Pharmacology and Anatomy Department, University of Alicante, Crta San Vicente del Raspeig s/n, 03016, San Vicente del Raspeig, Alicante, Spain

    David P. Pinero

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  1. Esin Sogutlu Sari
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  2. David P. Pinero
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  3. Anil Kubaloglu
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  7. Yusuf Ozerturk
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Corresponding author

Correspondence to David P. Pinero.

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All the authors have full control of all primary data, and they agree to allow Graefe’s Archive for Clinical and Experimental Ophthalmology to review the data of the current study if requested.

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Sari, E.S., Pinero, D.P., Kubaloglu, A. et al. Toric implantable collamer lens for moderate to high myopic astigmatism: 3-year follow-up. Graefes Arch Clin Exp Ophthalmol 251, 1413–1422 (2013). https://doi.org/10.1007/s00417-012-2172-8

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  • DOI: https://doi.org/10.1007/s00417-012-2172-8

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