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Influence of across-pupil sutures on the optical quality of intraocular lenses

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Abstract

Purpose

In cases of pupillary capture after previous transscleral fixation of an intraocular lens (IOL), an across-pupil suture technique is sometimes used to stabilize the IOL. We investigated the optical effects of 10-0 polypropylene sutures placed across the pupil.

Methods

Optical performance was evaluated using the optical bench metrology system, and a single-piece IOL was used in an optical bench system consisting of a model eye, a high-resolution Hartmann–Shack wave front sensor, and an image capturing device with 2.0, 3.0, 4.0, and 4.5 mm apertures with distance focus. To simulate across-pupil sutures, two 10-0 polypropylene sutures were placed 2 mm apart across the pupil. The focus image, spherical aberration, and image quality were measured and compared with and without sutures.

Results

When pupil size increased, spherical aberration increased, irrespective of sutures. No difference was found in spherical aberration with and without sutures, and image qualities at 17.6 and 35.2 cycles per degree were not affected by the across-pupil sutures.

Conclusions

The differences in optical quality using across-pupil 10-0 polypropylene sutures were clinically negligible.

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Acknowledgements

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (2016R1C1B2012933).

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Authors and Affiliations

  1. Department of Ophthalmology and Visual Science, Daejeon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea

    Chang Rae Rho

  2. Department of Ophthalmology and Visual Science, Catholic Institute for Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea

    Chang Rae Rho, Min-Ji Kim & Choun-Ki Joo

  3. Department of Ophthalmology and Visual Science, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 137-701, Republic of Korea

    Min-Ji Kim & Choun-Ki Joo

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  1. Chang Rae Rho
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Correspondence to Choun-Ki Joo.

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Rho, C.R., Kim, MJ. & Joo, CK. Influence of across-pupil sutures on the optical quality of intraocular lenses. Int Ophthalmol 38, 909–915 (2018). https://doi.org/10.1007/s10792-016-0441-y

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  • DOI: https://doi.org/10.1007/s10792-016-0441-y

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