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3-month surgical outcomes of Implantable Collamer Lens implantation for myopic regression after laser vision correction surgeries: a retrospective case series

 Byunghoon Chung  ;  Joon Hyun Kim  ;  David S Y Kang  ;  Dong Jun Kang  ;  Eung Kweon Kim  ;  Kyoung Yul Seo  ;  Ikhyun Jun  ;  Tae-Im Kim 
 BMC OPHTHALMOLOGY, Vol.21(1) : 397, 2021-11 
Journal Title
Issue Date
Humans ; Keratomileusis, Laser In Situ* ; Lasers ; Lasers, Excimer / therapeutic use ; Myopia* / surgery ; Photorefractive Keratectomy* ; Refraction, Ocular ; Retrospective Studies ; Treatment Outcome
Implantable collamer lens ; Laser-assisted in situ keratomileusis ; Myopic regression ; Photorefractive keratectomy
Background: To investigate the surgical outcomes of implantable collamer lens (ICL) implantation in eyes with residual myopia after primary laser vision correction (LVC) surgeries.

Methods: This study included patients who underwent ICL implantation and had a history of LVC surgery, including photorefractive keratectomy (PRK) or laser-assisted in situ keratomileusis (LASIK). Visual acuity and refractive error were assessed pre and 3-months postoperatively and the efficacy and safety indices calculated accordingly.

Results: A total of 30 eyes of 17 patients were included in this study. At 3 months, the mean logMAR uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), and spherical equivalent were - 0.03 ± 0.11 (include logMAR), - 0.04 ± 0.09 (include logMAR), and - 0.06 ± 0.33 diopters (D), respectively. The 3-month Snellen UDVA was better than 20/20 for 83% of eyes, and 97% of eyes showed an unchanged or improved CDVA after surgery. The mean efficacy and safety indices were 1.11 ± 0.22 and 1.13 ± 0.20, respectively. Further, 93 and 100% of eyes were within ±0.5 and ± 1.0 D of the attempted spherical equivalent refraction, respectively.

Conclusions: ICL implantation in eyes with myopic regression after previous LVC surgery showed safe, effective, and predictable outcomes.

Trial registration: retrospectively registered.
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1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Eung Kweon(김응권) ORCID logo https://orcid.org/0000-0002-1453-8042
Kim, Tae-Im(김태임) ORCID logo https://orcid.org/0000-0001-6414-3842
Seo, Kyoung Yul(서경률) ORCID logo https://orcid.org/0000-0002-9855-1980
Jun, Ik Hyun(전익현) ORCID logo https://orcid.org/0000-0002-2160-1679
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