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Visual function in eyes with diffractive extended depth-of-focus and monofocal intraocular lenses: 2-year comparison

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Abstract

Purpose

To compare long-term visual function after implantation of diffractive extended depth-of-focus (EDF) intraocular lenses (IOLs) using echelett optics and monofocal IOLs with the same platform.

Methods

In this prospective comparative case series, diffractive EDF or monofocal IOLs were implanted binocularly and followed up for 2 years. At the last visit, distance-corrected binocular visual acuities were measured at distances of 0.3, 0.5, 0.7, 1, 2, 3, and 5 m. Photopic and mesopic contrast sensitivity was also examined. Dynamic visual function was evaluated in terms of functional visual acuity (FVA), standard deviation of visual acuity (SDVA), visual maintenance ratio (VMR), mean response time, and number of blinks. The outcomes were compared between the two IOLs, and the influence of posterior capsule opacification (PCO) on contrast sensitivity and FVA was examined.

Results

Binocular visual acuity of eyes with EDF IOLs was better at distances of 0.5 and 0.7 m than that of eyes with monofocal IOL (P < 0.026). There were no differences in binocular visual acuity at other distances, contrast sensitivities, or dynamic visual functions. The influence of PCO on the visual functions was not found in eyes with EDF IOLs.

Conclusion

Up to 2 years postoperatively, eyes with diffractive EDF IOLs sustained superior intermediate visual acuity together with visual function comparable to that of eyes with monofocal IOLs.

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Funding

This investigator-initiated study was funded by AMO Japan (Tokyo, Japan).

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Authors and Affiliations

  1. Miyata Eye Hospital, 6-3 Kurahara-cho, Miyakonojyo, Miyazaki, 885-0051, Japan

    Takahiro Hisai, Keita Takada, Shota Tokuda, Ryohei Nejima, Yosai Mori, Keiichiro Minami & Kazunori Miyata

Authors
  1. Takahiro Hisai
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  2. Keita Takada
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  3. Shota Tokuda
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  4. Ryohei Nejima
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  5. Yosai Mori
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  6. Keiichiro Minami
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  7. Kazunori Miyata
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Corresponding author

Correspondence to Keiichiro Minami.

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Ethical approval

This study was approved by the ethics committee of Miyata Eye Hospital (identifier: CS-295) and adhered to the tenets of the Declaration of Helsinki.

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Written informed consent was obtained from all the participants prior to enrollment.

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The authors declare no competing interests.

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Hisai, T., Takada, K., Tokuda, S. et al. Visual function in eyes with diffractive extended depth-of-focus and monofocal intraocular lenses: 2-year comparison. Graefes Arch Clin Exp Ophthalmol 261, 2567–2573 (2023). https://doi.org/10.1007/s00417-023-06051-y

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  • DOI: https://doi.org/10.1007/s00417-023-06051-y

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