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Updated: Mar 15, 2026
Ye's Swing Technique for Small-incision Lenticule Extraction Surgery
Published on: June 27, 2025
Chung's swing technique: a new technique for small-incision lenticule extraction
Bu Ki Kim1, Su Joung Mun1, Dae Gyu Lee1
1Onnuri Smile Eye Clinic, Hyobong building 9F 1, Gangnam-daero 65 gil, Seocho-gu, Seoul, Korea.
Background:
To introduce the Chung's swing technique for small-incision lenticule extraction (SMILE).
Methods:
A total of 112 eyes of 56 patients were included in this study. Patients were divided into two groups: 52 eyes of 26 patients were treated with SMILE using a traditional method (traditional group) and 60 eyes of 30 patients were treated with SMILE using the Chung's swing technique (swing group).
Results:
At 1 month postoperatively, all eyes in both groups had an uncorrected distance visual acuity of 20/20 or better. The efficacy indices were 1.09 ± 0.17 and 1.02 ± 0.11 (p = 0.492), and the safety indices were 1.12 ± 0.14 and 1.09 ± 0.15 (p = 0.537), for the traditional and swing group, respectively. All eyes in both groups underwent successful lenticule extraction; all lenticules were intact and complete. The mean lenticule extraction times were 48.67 ± 4.9 and 39.8 ± 5.53 s, for the traditional and swing group, respectively (p < 0.001).
Conclusions:
The Chung's swing technique is efficient for lenticule separation and extraction. Our study results showed good clinical outcomes.
Trial Registration Number:
KCT0001978 . Registered 22 July 2016. Retrospectively registered.
