Corneal crosslinking for keratoconus in Japanese populations: one year outcomes and a comparison between conventional and accelerated procedures

Naoko Kato, Kenji Konomi, Megumi Shinzawa, Kozue Kasai, Takeshi Ide, Ikuko Toda, Chikako Sakai, Kazuno Negishi, Kazuo Tsubota, Jun Shimazaki

研究成果: Article査読

8 被引用数 (Scopus)

抄録

Purpose: We retrospectively investigated the efficacy of corneal crosslinking (CXL) on progressive keratoconus in a Japanese population and compared the outcomes of conventional and accelerated CXL. Study design: A retrospective cohort study Methods: A total of 108 consecutive eyes in 95 patients (75 men; 21.9 ± 6.2 years) with progressive keratoconus were enrolled. The epithelium was ablated in all eyes. After presoaking the corneal stroma in riboflavin, UV-A was irradiated at 3.0 mW/cm 2 (conventional CXL) for 30 min on 23 eyes and 18.0 mW/cm 2 for 5 min (accelerated CXL) on 85 eyes. Best spectacle-corrected visual acuity (BSCVA), manifest refraction, keratometric value, corneal thickness, corneal endothelial cell density (ECD), intraocular pressure, and complications were evaluated at 1, 3, 6, and 12 months after the procedure. Results: BSCVA, manifest refraction, ECD, and corneal thickness did not change significantly after both procedures. The keratometric value was significantly decreased from the preoperative value at 12 months (p < 0.001). Progression to more than 1.0 D after CXL was observed in 10 eyes (9.3%). The ΔKmax was negatively associated with preoperative Kmax (p < 0.001) and positively associated with preoperative thinnest corneal thickness (p < 0.001). Both treatment modules showed no significant difference in all parameters. Conclusion: CXL was as effective in treating keratoconus in Japanese patients as in individuals of other ethnicities. Overall, CXL could be performed using either the conventional or accelerated approach to halt the progression of keratoconus in Japanese populations.

本文言語English
ページ(範囲)560-567
ページ数8
ジャーナルJapanese Journal of Ophthalmology
62
5
DOI
出版ステータスPublished - 2018 9月 1

ASJC Scopus subject areas

  • 眼科学

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