Journal
JOURNAL OF OPHTHALMOLOGY
Volume 2021, Issue -, Pages -Publisher
HINDAWI LTD
DOI: 10.1155/2021/1851883
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Accelerated corneal cross-linking is effective and safe in halting the progression of pediatric keratoconus, with improved visual acuities.
Aim. To assess the efficacy and safety of accelerated corneal cross-linking in the treatment of pediatric keratoconus. Method. In this retrospective case series, 29 eyes of 20 pediatric patients with keratoconus underwent accelerated corneal cross-linking. Treatment was delivered at 10 mW/cm(2) for 9 minutes with a total dose of 5.4 J/cm(2). Clinical evaluation included visual acuities and refractive and Scheimpflug corneal tomography assessments. All patients with a minimum follow-up duration of 24 months were included in the study. Results. Mean +/- standard deviation age was 15.41 +/- 2.13 years (range: 8 to 18 years). Uncorrected distance visual acuity improved significantly from 0.56 +/- 0.28 to 0.42 +/- 0.29 logMAR (P = 0.0003), and corrected distance visual acuity improved significantly from 0.34 +/- 0.23 to 0.28 +/- 0.22 logMAR (P = 0.014). (e mean manifest refraction spherical equivalent value was significantly reduced (-0.59 +/- 0.95 D, P = 0.0024). While mean flat keratometry and steep keratometry values were not significantly altered (P > 0.05 for both), the mean maximum keratometry value was significantly decreased from 56.97 +/- 5.24D preoperatively to 55.84 +/- 5.37D at 24 months postoperatively (P = 0.003). Maximum keratometry had progressed by >1D in two eyes (6.89%). Permanent corneal haze was reported in one case (3.44%). Conclusion. Our 24-month follow-up demonstrated that accelerated corneal cross-linking appears to halt the progression of keratoconus in pediatric patients without apparent complications. Uncorrected and corrected distance visual acuities were also improved.
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