J Korean Ophthalmol Soc > Volume 56(7); 2015 > Article
Journal of the Korean Ophthalmological Society 2015;56(7):1006-1011.
DOI: https://doi.org/10.3341/jkos.2015.56.7.1006    Published online July 15, 2015.
Long-Term Effect and Safety of Contact Lenses for Keratoconus.
Jong Heon Lee, Young Min Park, Young Kee Park, Jong Su Lee, Ji Eun Lee
1Department of Ophthalmology, Pusan National University School of Medicine, Busan, Korea. Jiel75@hanmail.net
2YK Eye Clinic, Seoul, Korea.
3Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea.
원추각막 콘택트렌즈의 장기적 효과 및 안전성
부산대학교 의학전문대학원 안과학교실1, YK 안과의원2, 부산대학교 의학전문대학원 양산부산대학교병원 의생명융합연구소3
Received: 19 December 2014   • Revised: 30 January 2015   • Accepted: 4 June 2015
To evaluate the long-term clinical effect and safety of YK-KC lens(R) (LucidKorea Ltd., Seoul, Korea) for keratoconus. METHODS: In this study we investigated 152 keratoconic eyes fitted with YK-KC lens(R) and followed up for at least 5 years. We assessed retrospectively self-reported patient comfort, best corrected visual acuity, corneal topographic indices before and after contact lens fitting and complications during contact lens wearing. RESULTS: The study included 57 male and 40 female patients with a mean age of 28.6 +/- 8.5 years. The mean follow-up was 8.0 +/- 2.9 years. Regarding lens comfort, 126 eyes (82.9%) showed self-reported comfort for YK-KC lenses(R). The mean best corrected visual acuity (log MAR) improved from 0.49 +/- 0.42 before lens fitting to 0.19 +/- 0.27 after lens wearing, which was statistically significant (p < 0.001). Based on the keratometric values, after contact lens fitting both Simulated keratometry (Sim K) max and Sim K min tended to be steeper, but these differences were not statistically significant (p = 0.66 and 0.11, respectively). There were no statistically significant differences between the values before and after fitting with respect to the astigmatic powers (p = 0.22). Complications observed included punctate or coalesced epithelial corneal staining in 24 eyes (16%), however, persistent full-thickness epithelial defect was not observed. CONCLUSIONS: The YK-KC lens(R) in patients with keratoconus can provide excellent visual improvement and comfort without any significant influence on the progression of keratoconus or corneal complications during a long-term follow-up period.
Key Words: Contact lens;Keratoconus;YK-KC lens(R)

Editorial Office
SKY 1004 Building #701
50-1 Jungnim-ro, Jung-gu, Seoul 04508, Korea
Tel: +82-2-583-6520    Fax: +82-2-583-6521    E-mail: kos08@ophthalmology.org                

Copyright © 2024 by Korean Ophthalmological Society.

Developed in M2PI

Close layer
prev next