Abstract
Purpose
To compare the quality of images viewed through an extended depth of focus (EDF) intraocular lens (IOL) to that through multifocal or monofocal IOL.
Study design
Experimental study
Methods
EDF IOL (Symfony®, ZXR00V, Johnson & Johnson Vision), diffractive multifocal (ZLB00, + 3.25D or ZMB00, + 4.0D), or monofocal (ZCB00V) IOL with a spherical power of + 20.0 diopter (D) was placed in a fluid-filled model eye with corneal aberrations similar to those of human eyes. A United States Air Force Resolution Grating Target was glued to the posterior surface of the model eye and viewed through a flat contact lens, a 60D or 128D wide-angle non-contact lens (Resight®) or wide-angle contact lens (MiniQuad®). The contrast of the grating images recorded with the EDF and multifocal IOLs were compared to those through the monofocal IOL.
Results
The grating images viewed through the flat contact lens were slightly blurred when viewed through the EDF IOL but clearer than those through the multifocal IOLs with very blurred images in the periphery. The contrast of the images viewed through the EDF and multifocal IOLs through the flat contact lens was significantly lower than through the monofocal IOL (P < 0.02). The contrast of the images viewed through the EDF IOL with 60D or 128D wide-angle non-contact lens was significantly lower than through the monofocal IOL (P < 0.05) but not with wide-angle contact lens.
Conclusion
Our results suggest that vitreous surgeons can accomplish a clearer view during vitrectomy in EDF IOL-implanted eyes with a wide-angle viewing contact lens and a flat contact lens than in multifocal IOL-implanted eyes.
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Acknowledgements
The authors thank Professor Emeritus Duco Hamasaki of the Bascom Palmer Eye Institute, University of Miami, Miami, Florida, for discussions and thorough editing of the manuscript. The IOLs used in the study were donated by Johnson & Johnson vision.
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M. Inoue, Non-financial support, Lecture fee (AMO), Grant, Lecture fee (Alcon), Lecture fee (Novartis, Santen, Senju, Zeiss, Bayer); N. T. Aicher, None; Y. Itoh, Grant (Bayer), Lecture fee (Alcon, Novartis, Bayer, Santen); H. B. Miyajima, Grant, Consultant fee (AMO), Grant (Alcon, HOYA, Santen), Consultant fee (Alcon, HOYA, Zeiss), Lecture fee (Alcon, AMO, HOYA, Santen, Senju, Kowa, Zeiss); A. Hirakata, Grant (Santen), Lecture fee (Santen, Alcon, Novartis, Bayer, Sanwa Kagaku Kenkyusho, Kowa, Senju).
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Corresponding Author: Makoto Inoue
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Inoue, M., Aicher, N.T., Itoh, Y. et al. Quality of view through extended depth of focus intraocular lens in a model eye. Jpn J Ophthalmol 65, 569–580 (2021). https://doi.org/10.1007/s10384-021-00813-z
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DOI: https://doi.org/10.1007/s10384-021-00813-z