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Clinical Outcomes of Patients Implanted with Bifocal and Extended Depth of Focus Intraocular Lenses
이중초점인공수정체와 연속초점인공수정체의 임상결과 비교
JKOS 2019 Sep;60(9):835-42
Published online September 15, 2019;
Copyright © 2019 The Korean Ophthalmological Society.
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Su Hwan Park, MD1,2, Sung Il Kim, MD1,2, Jung Hyo Ahn, MD1,2, Jong Hoon Shin, MD1,2,
Su Jin Kim, MD, PhD1,2, Ji Eun Lee, MD, PhD1,2
박수환1,2 · 김성일1,2 · 안정효1,2 · 신종훈1,2 · 김수진1,2 · 이지은1,2

Department of Ophthalmology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine1, Yangsan, Korea
Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital2, Yangsan, Korea
부산대학교 의학전문대학원 양산부산대학교병원 안과학교실1, 양산부산대학교병원 의생명융합연구소2
Received April 18, 2019; Revised May 11, 2019; Accepted August 16, 2019.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Purpose: To compare the postoperative clinical outcomes after cataract surgery with implantation of bifocal intraocular lenses (IOLs) and extended depth of focus (EDOF) IOLs.
Methods: A total of 60 patients were divided into three groups, and each group included 20 patients of 40 eyes: group A with a +3.25 D bifocal IOL in both eyes, group B with an EDOF IOL in both eyes, and group C with a +3.25 D bifocal in one eye and an EDOF IOL in the other eye. We retrospectively reviewed the patients’ medical charts to analyze their binocular uncorrected visual acuities (UCVAs; distant, intermediate, and near) and refraction at postoperative 3 months.
Results: The binocular distant UCVAs were 0.04 ± 0.01, 0.05 ± 0.02, and 0.04 ± 0.01 in groups A, B, and C, respectively, and there were no differences between the groups (p > 0.05). The intermediate UCVAs were 0.16 ± 0.01, 0.10 ± 0.01, and 0.10 ± 0.01, respectively, and group A was the lowest (A–B, p = 0.031; A–C, p = 0.018; B–C, p = 1.000). The near UCVAs were 0.05 ± 0.01, 0.24 ± 0.01, and 0.13 ± 0.01, respectively, and there were significant differences between the groups (A–B, p < 0.001, A–C: p = 0.009; B–C, p = 0.003).
Conclusions: There were no significant differences among the three groups in binocular distant UCVA, and groups B and C showed better intermediate UCVAs than group A. Near UCVA was ranked in the order of groups A, C, B.
Keywords : Bifocal, Extended depth of focus, Multifocal intraocular lens, Visual acuity


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