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Use of low-vault posterior chamber collagen copolymer phakic intraocular lenses for the correction of myopia: a 3-year follow-up

  • Refractive Surgery
  • Published:
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Abstract

Background

Phakic intraocular lens (pIOL) models have indicated an association between cataract formation and inadequate vaulting. In this study, the efficacy and safety of low-vault posterior chamber pIOLs in the correction of myopia were examined over 3 years.

Methods

From 316 patients undergoing surgery, 14 eyes with a low vault (≤ 150 μm) were examined from 14 patients. After implanting the Visian Implantable Collamer pIOL for the correction of myopia (moderate and high), the pIOL vault, endothelial cell loss, uncorrected distance visual acuity (UDVA), corrected DVA (CDVA), and detrimental events were examined over 3 years.

Results

Based on the findings, the mean spherical equivalent reduced from − 8.15 ± 3.29 before surgery to − 1.02 ± 0.75 diopters 3 years after the surgery. In terms of visual outcomes, the mean UDVA (Log MAR) significantly increased from 0.95 ± 037 to 0.27 ± 0.28, and the mean CDVA also increased from 0.99 ± 0.11 to 0.06 ± 0.08 (P < 0.05). The mean indices of safety and efficacy were respectively 1.075 and 0.748. The eyes lost not more than two visual acuity lines. Based on the findings, 82% achieved 0.80 or better CDVA, while the total endothelial cell loss was 7.96% during 3 years. Overall, vision-threatening conditions were not reported.

Conclusion

The introduced pIOL can be considered a safe and efficient method for myopia at moderate to high levels.

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Acknowledgements

The authors wish to thank all personnel at Bina Eye Hospital for their kindly assistance.

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Authors and Affiliations

  1. Health Management Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran

    Khosrow Jadidi, Seyed-Hashem Daryabari & Hamidreza Torabi

  2. Vision Health Research Center, Tehran, Iran

    Seyed Aliasghar Mosavi & Farhad Nejat

  3. Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran

    Neda Mohammadi

  4. Applied Biotechnology Research Center, Baqiyatallah University of Medical Science, Tehran, Iran

    Hosein Aghamolaei

  5. Department of Ophthalmology, Hormozgan University of Medical Sciences, Bandar Abbas, Iran

    Aliagha Alishiri

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  1. Khosrow Jadidi
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  2. Seyed Aliasghar Mosavi
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Correspondence to Seyed Aliasghar Mosavi.

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Jadidi, K., Mosavi, S.A., Nejat, F. et al. Use of low-vault posterior chamber collagen copolymer phakic intraocular lenses for the correction of myopia: a 3-year follow-up. Graefes Arch Clin Exp Ophthalmol 257, 1555–1560 (2019). https://doi.org/10.1007/s00417-019-04336-9

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  • DOI: https://doi.org/10.1007/s00417-019-04336-9

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