光屈光性角膜切除术后早期后角膜变化和Belin/Ambrósio评分：一项五元卡研究。
IF 2.6
3区 医学
Q2 OPHTHALMOLOGY
引用次数: 0
摘要
前言：应用Pentacam断层扫描评估光屈光性角膜切除术（PRK）术后早期角膜后表面、前房参数和Belin/Ambrósio增强扩张显示（BAD）评分的变化。方法：本观察性研究纳入51例102眼（平均年龄28.43±6.27岁）接受酒精辅助PRK治疗近视和/或散光的患者。术前和术后1个月使用Pentacam系统进行评估，测量，前房深度（ACD），前房体积（ACV），角膜中央厚度，后角膜测定仪，后抬高和BAD评分。使用wavight®EX 500准分子激光进行PRK，随后应用丝裂霉素c。统计分析采用配对t检验和Pearson相关。结果：PRK后1个月，ACV显著降低(p)。结论：PRK在1个月时诱导最小的角膜后突和BAD评分变化，可能模仿早期扩张。建议采用多模态检测来准确检测扩张。需要更大规模、更长期的研究来验证这些发现。本文章由计算机程序翻译，如有差异，请以英文原文为准。
Early Posterior Corneal Changes and Belin/Ambrósio Scores Following Photorefractive Keratectomy: A Pentacam Study.
Introduction: To evaluate early postoperative changes in the posterior corneal surface, anterior chamber parameters, and Belin/Ambrósio Enhanced Ectasia Display (BAD) scores following photorefractive keratectomy (PRK) using Pentacam tomography.
Methods: This observational study included 102 eyes of 51 patients (mean age 28.43 ± 6.27 years) undergoing alcohol-assisted PRK for myopia and/or astigmatism. Preoperative and 1-month postoperative assessments were performed using the Pentacam system, measuring, anterior chamber depth (ACD), anterior chamber volume (ACV), central corneal thickness, posterior keratometry, posterior elevation, and BAD scores. PRK was conducted with a WaveLight® EX 500 excimer laser, followed by mitomycin-C application. Statistical analysis utilized paired t-tests and Pearson's correlation.
Results: At 1 month post-PRK, ACV significantly decreased (p < 0.01), while ACD reduction was not significant (p = 0.40). Posterior keratometry (K1, K2, Kmean) and astigmatism decreased (p < 0.01), with a mean posterior elevation increase of -2.50 ± 2.94 µm (p < 0.01). A weak negative correlation was observed between maximum posterior elevation difference and ablation depth (p = 0.03, r = -0.20) and ablation depth/preoperative pachymetry ratio (p = 0.03, r = -0.20). BAD-D scores (Dp, Dt, Da, total D) significantly increased (p < 0.01), except for Df (p = 0.41). No correlation was found with preoperative pachymetry or residual stroma.
Conclusions: PRK induces minimal posterior corneal protrusion and BAD score changes at 1 month, potentially mimicking early ectasia. Multimodal testing is advised for accurate ectasia detection. Larger, longer-term studies are needed to validate these findings.
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来源期刊
Ophthalmology and Therapy
OPHTHALMOLOGY-
CiteScore
4.20
自引率
3.00%
发文量
157
审稿时长
6 weeks
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