Furu Nanak Eye Centre, New Delhi, India.
J Refract Surg. 2012 Nov;28(11):759-62. doi: 10.3928/1081597X-20121011-02.
To evaluate the safety and efficacy of corneal collagen cross-linking (CXL) in the treatment of keratoconus in pediatric patients.
Epithelium-off CXL using the standard protocol was performed in 15 eyes from 15 patients (age range: 10 to 15 years) with moderate keratoconus in 1 eye and advanced disease in the fellow eye. Principal outcomes included uncorrected and corrected distance visual acuity (CDVA), refraction, and topography-derived outcomes of maximum and average keratometry (K).
Mean uncorrected distance visual acuity improved significantly from 1.00 ± 0.30 (20/200) to 0.72 ± 0.29 (20/100) logMAR (P=.035) and mean CDVA from 0.56 ± 0.21 (20/70) to 0.30 ± 0.15 (20/40) logMAR (P=.003) at the end of 12 months. Mean change in apical K (1.01 ± 2.40 diopters) was also significant (P=.004). No significant complications were noted.
Corneal collagen CXL was found to be safe and effective in the first 12 months for keratoconus in children with similar initial efficacy as in adults in terms of improvement in visual and topographic outcomes.
评估角膜胶原交联(CXL)治疗儿童圆锥角膜的安全性和疗效。
对 15 例(15 只眼)中-重度圆锥角膜患者(1 只眼为轻度,对侧眼为进展期)行标准去上皮 CXL。主要结局包括未矫正和矫正远距视力(UCVA 和 CDVA)、屈光度和角膜地形图的最大和平均角膜曲率(K)。
术后 12 个月,平均 UCVA 从 1.00±0.30(20/200)提高至 0.72±0.29(20/100)logMAR(P=.035),平均 CDVA 从 0.56±0.21(20/70)提高至 0.30±0.15(20/40)logMAR(P=.003),均有统计学差异。中央角膜曲率(K)的平均变化为 1.01±2.40 屈光度(P=.004)。未观察到明显并发症。
CXL 治疗儿童圆锥角膜在术后 12 个月内安全有效,在改善视力和角膜地形图方面与成人的初始疗效相似。