A Novel Corneal Remodeling Technique of Laser Asymmetric Keratectomy in Keratoconus Suspect: A Retrospective Case Control Study
Ji Sang Min,1 Byung Moo Min2 1Department of Ophthalmology, The Institute of Vision Research, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; 2Woori Eye Clinic, Affiliated Clinical Professor to Department of Ophthalmology, Yonsei University College of Medicine, Daejon, 35229,...
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Dove Medical Press
2024-11-01
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| description | Ji Sang Min,1 Byung Moo Min2 1Department of Ophthalmology, The Institute of Vision Research, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; 2Woori Eye Clinic, Affiliated Clinical Professor to Department of Ophthalmology, Yonsei University College of Medicine, Daejon, 35229, Republic of KoreaCorrespondence: Byung Moo Min, Woori Eye Clinic, Affiliated Clinical Professor to Department of Ophthalmology, Yonsei University School of Medicine, Daeduk Daero 219 (Dunsan-dong), Seo-gu, Daejon, 35229, Republic of Korea, Tel +82-42-476-1675, Fax +82-42-476-1670, Email bmin8275@naver.comPurpose: This retrospective case control study report includes 4 eyes of 4 patients (aged from 37 to 44 years) with keratoconus suspect (KCS) who underwent laser epithelial keratomileusis linked laser asymmetric keratectomy (L-LAK) as corneal remodeling technique in order to avoid postoperative corneal ectasia.Patients and Methods: Four eyes of 4 patients showed corneal topography findings with abnormal localized steep keratometric curvature greater than 47.0 D and peripheral corneal thickness asymmetry (Total corneal central thickness deviations in four directions on Orbscan map (SUM)≥ 80 μm). L-LAK could be performed both the original ablation of refractive errors (SE from − 1.25 to − 5.50 D) and the customized ablation (selective ablation of the thicker peripheral cornea averaging:64 μm selectively and the central cornea of the myopic shift due to LAK averaging-1.50D. The main outcome measures between preoperative and postoperative 2 year were refraction, visual acuity (UDVA), keratometry, corneal symmetry evaluating SUM.Results: After 2 years, SEs (D, average) were − 0.34, UDVA (LogMAR) was 0.00. keratometry including Kmax was markedly decreased, SUM had diminished markedly. There were no case of postoperative adverse effects.Conclusion: L-LAK resulted in a decreased SUM, increased corneal symmetry, and no postoperative corneal ectasia with good visual outcomes in myopic patients with KCS.Keywords: keratoconus suspect, corneal remodeling, L-LAK, KCS, linked laser asymmetric keratectomy |
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| series | Clinical Ophthalmology |
| spelling | doaj-art-df991c049ab44f93a5ec683ee613a3882025-08-20T01:47:18ZengDove Medical PressClinical Ophthalmology1177-54832024-11-01Volume 183125313196866A Novel Corneal Remodeling Technique of Laser Asymmetric Keratectomy in Keratoconus Suspect: A Retrospective Case Control StudyMin JSMin BMJi Sang Min,1 Byung Moo Min2 1Department of Ophthalmology, The Institute of Vision Research, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; 2Woori Eye Clinic, Affiliated Clinical Professor to Department of Ophthalmology, Yonsei University College of Medicine, Daejon, 35229, Republic of KoreaCorrespondence: Byung Moo Min, Woori Eye Clinic, Affiliated Clinical Professor to Department of Ophthalmology, Yonsei University School of Medicine, Daeduk Daero 219 (Dunsan-dong), Seo-gu, Daejon, 35229, Republic of Korea, Tel +82-42-476-1675, Fax +82-42-476-1670, Email bmin8275@naver.comPurpose: This retrospective case control study report includes 4 eyes of 4 patients (aged from 37 to 44 years) with keratoconus suspect (KCS) who underwent laser epithelial keratomileusis linked laser asymmetric keratectomy (L-LAK) as corneal remodeling technique in order to avoid postoperative corneal ectasia.Patients and Methods: Four eyes of 4 patients showed corneal topography findings with abnormal localized steep keratometric curvature greater than 47.0 D and peripheral corneal thickness asymmetry (Total corneal central thickness deviations in four directions on Orbscan map (SUM)≥ 80 μm). L-LAK could be performed both the original ablation of refractive errors (SE from − 1.25 to − 5.50 D) and the customized ablation (selective ablation of the thicker peripheral cornea averaging:64 μm selectively and the central cornea of the myopic shift due to LAK averaging-1.50D. The main outcome measures between preoperative and postoperative 2 year were refraction, visual acuity (UDVA), keratometry, corneal symmetry evaluating SUM.Results: After 2 years, SEs (D, average) were − 0.34, UDVA (LogMAR) was 0.00. keratometry including Kmax was markedly decreased, SUM had diminished markedly. There were no case of postoperative adverse effects.Conclusion: L-LAK resulted in a decreased SUM, increased corneal symmetry, and no postoperative corneal ectasia with good visual outcomes in myopic patients with KCS.Keywords: keratoconus suspect, corneal remodeling, L-LAK, KCS, linked laser asymmetric keratectomyhttps://www.dovepress.com/a-novel-corneal-remodeling-technique-of-laser-asymmetric-keratectomy-i-peer-reviewed-fulltext-article-OPTHkeratoconus suspectcorneal remodelingl-lak |
| spellingShingle | Min JS Min BM A Novel Corneal Remodeling Technique of Laser Asymmetric Keratectomy in Keratoconus Suspect: A Retrospective Case Control Study Clinical Ophthalmology keratoconus suspect corneal remodeling l-lak |
| title | A Novel Corneal Remodeling Technique of Laser Asymmetric Keratectomy in Keratoconus Suspect: A Retrospective Case Control Study |
| title_full | A Novel Corneal Remodeling Technique of Laser Asymmetric Keratectomy in Keratoconus Suspect: A Retrospective Case Control Study |
| title_fullStr | A Novel Corneal Remodeling Technique of Laser Asymmetric Keratectomy in Keratoconus Suspect: A Retrospective Case Control Study |
| title_full_unstemmed | A Novel Corneal Remodeling Technique of Laser Asymmetric Keratectomy in Keratoconus Suspect: A Retrospective Case Control Study |
| title_short | A Novel Corneal Remodeling Technique of Laser Asymmetric Keratectomy in Keratoconus Suspect: A Retrospective Case Control Study |
| title_sort | novel corneal remodeling technique of laser asymmetric keratectomy in keratoconus suspect a retrospective case control study |
| topic | keratoconus suspect corneal remodeling l-lak |
| url | https://www.dovepress.com/a-novel-corneal-remodeling-technique-of-laser-asymmetric-keratectomy-i-peer-reviewed-fulltext-article-OPTH |
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