期刊
EUROPEAN JOURNAL OF OPHTHALMOLOGY
卷 31, 期 6, 页码 3494-3499出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/11206721211018362
关键词
Cornea; cross-linking; keratoconus; keratoconus progression
This study retrospectively evaluated the long-term visual, refractive, and corneal tomographic outcomes of epithelium-off ACXL in pediatric KC patients. The results indicated that ACXL effectively halts KC progression with long-term clinical benefits for pediatric patients.
Purpose: To evaluate the long term visual, refractive, and corneal tomographic outcomes of epithelium-off accelerated corneal collagen cross-linking (ACXL) in the management of pediatric keratoconus (KC). Methods: This retrospective study included patients under 18 years old with progressive KC who underwent ACXL between 2012 and 2019 at Dicle University Hospital. Complete ophthalmic examination was performed including uncorrected distance visual acuity (UDVA), best spectacle-corrected distance visual acuity (CDVA), manifest refraction, and corneal tomography. Evaluations were performed preoperatively and at 6 months intervals postoperatively. Results: Forty-nine eyes of 49 patients were included in the study. The mean age of patients at the time of ACXL was 14.2 +/- 1.8 (range: 9.5-17.3) years. Mean follow up was 4.61 +/- 1.90 (range: 2.0-8.1) years. The mean LogMAR UDVA improved from 0.94 +/- 0.41 to 0.81 +/- 0.43, 0.69 +/- 0.41, and 0.67 +/- 0.33 after 1, 3, and 5 years respectively (p = 0.001). The mean LogMAR CDVA improved from 0.58 +/- 0.36 to 0.46 +/- 0.31, 0.34 +/- 0.23, and 0.39 +/- 0.27 after 1, 3, and 5 years respectively (p = 0.015). The mean refractive cylinder improved significantly from 6.01 +/- 2.07 diopters (D) to 5.46 +/- 1.87, 5.38 +/- 2.18, and 5.02 +/- 2.31 D after 1, 3, and 5 years respectively (p = 0.005). As compared to preoperative values, steep keratometry and maximum keratometry were not significantly different (p = 0.805 and 0.448, respectively) following ACXL, while flat keratometry significantly improved after ACXL (p = 0.012). Although central corneal thicknesses decreased significantly (p = 0.029), the decrease in thinnest corneal thickness was not statistically significant (p = 0.205). Conclusion: Epithelium-off ACXL seems to be effective for halting KC progression with long term clinical benefits in pediatric patients.
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