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Unintended changes in ocular biometric parameters during a 6-month follow-up period after FS-LASIK and SMILE
Eye and Vision ( IF 4.2 ) Pub Date : 2021-03-19 , DOI: 10.1186/s40662-021-00232-8
Junjie Wang , Bernardo T. Lopes , Hechen Li , Riccardo Vinciguerra , Si Cao , Songan Wu , Rong Zhu , Qinmei Wang , Xiaobo Zheng , Fangjun Bao , Ahmed Elsheikh

Corneal refractive surgery has become reliable for correcting refractive errors, but it can induce unintended ocular changes that alter refractive outcomes. This study is to evaluate the unintended changes in ocular biometric parameters over a 6-month follow-up period after femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK) and small incision lenticule extraction (SMILE). 156 consecutive myopic patients scheduled for FS-LASIK and SMILE were included in this study. Central corneal thickness (CCT), mean curvature of the corneal posterior surface (Kpm), internal anterior chamber depth (IACD) and the length from corneal endothelium to retina (ER) were evaluated before and after surgery over a 6-month period. Both the FS-LASIK and SMILE groups (closely matched at the pre-surgery stage) experienced flatter Kpm, shallower IACD and decreased ER 1 week post-surgery (P < 0.01), and these changes were larger in FS-LASIK than in SMILE group. During the 1 week to 6 months follow up period, Kpm, IACD and ER remained stable unlike CCT which increased significantly (P < 0.05), more in the FS-LASIK group. During the follow up, the posterior corneal surface became flatter and shifted posteriorly, the anterior chamber depth and the length from the corneal endothelium to retina decreased significantly compared with the pre-surgery stage. These unintended changes in ocular biometric parameters were greater in patients undergoing FS-LASIK than SMILE. The changes present clear challenges for IOL power calculations and should be considered to avoid affecting the outcome of cataract surgery.

中文翻译:

在FS-LASIK和SMILE术后6个月的随访期间,眼部生物统计参数发生意外变化

角膜屈光手术已成为矫正屈光不正的可靠方法,但它会引起意想不到的眼部改变,从而改变屈光结果。这项研究旨在评估飞秒激光辅助激光原位角膜磨镶术(FS-LASIK)和小切口小孔镜摘除术(SMILE)后6个月的随访期间眼部生物统计参数的意外变化。这项研究包括了156名连续进行FS-LASIK和SMILE治疗的近视患者。在6个月的手术前后,评估了中央角膜厚度(CCT),角膜后表面的平均曲率(Kpm),内部前房深度(IACD)和从角膜内皮到视网膜的长度(ER)。FS-LASIK和SMILE组(在手术前阶段相匹配)的Kpm都比较平坦,IACD较浅,术后1周ER降低(P <0.01),FS-LASIK的这些变化大于SMILE组。在1周至6个月的随访期内,Kpm,IACD和ER保持稳定,而CCT却显着增加(P <0.05),而FS-LASIK组则更高。在随访期间,与手术前相比,角膜后表面变平并向后移动,前房深度和从角膜内皮到视网膜的长度明显减少。与SMILE相比,接受FS-LASIK手术的患者眼部生物统计参数的这些意想不到的变化更大。这些变化对IOL功率计算提出了明显的挑战,应考虑避免影响白内障手术的结果。FS-LASIK的这些变化大于SMILE组。在1周至6个月的随访期内,Kpm,IACD和ER保持稳定,而CCT却显着增加(P <0.05),而FS-LASIK组则更高。在随访期间,与手术前相比,角膜后表面变平并向后移动,前房深度和从角膜内皮到视网膜的长度明显减少。与SMILE相比,接受FS-LASIK手术的患者眼部生物统计参数的这些意外变化更大。这些变化对IOL功率计算提出了明显的挑战,应考虑避免影响白内障手术的结果。FS-LASIK的这些变化大于SMILE组。在1周至6个月的随访期内,Kpm,IACD和ER保持稳定,而CCT却显着增加(P <0.05),而FS-LASIK组则更高。在随访期间,与手术前相比,角膜后表面变平并向后移动,前房深度和从角膜内皮到视网膜的长度明显减少。与SMILE相比,接受FS-LASIK手术的患者眼部生物统计参数的这些意想不到的变化更大。这些变化对IOL功率计算提出了明显的挑战,应考虑避免影响白内障手术的结果。与CCT不同,IACD和ER保持稳定,而CCT则显着增加(P <0.05),而FS-LASIK组更为明显。在随访期间,与手术前相比,角膜后表面变平并向后移动,前房深度和从角膜内皮到视网膜的长度明显减少。与SMILE相比,接受FS-LASIK手术的患者眼部生物统计参数的这些意想不到的变化更大。这些变化对IOL功率计算提出了明显的挑战,应考虑避免影响白内障手术的结果。与CCT不同,IACD和ER保持稳定,而CCT则显着增加(P <0.05),而FS-LASIK组更为明显。在随访期间,与手术前相比,角膜后表面变平并向后移动,前房深度和从角膜内皮到视网膜的长度明显减少。与SMILE相比,接受FS-LASIK手术的患者眼部生物统计参数的这些意想不到的变化更大。这些变化对IOL功率计算提出了明显的挑战,应考虑避免影响白内障手术的结果。与手术前相比,前房深度和从角膜内皮到视网膜的长度明显减少。与SMILE相比,接受FS-LASIK手术的患者眼部生物统计参数的这些意想不到的变化更大。这些变化对IOL功率计算提出了明显的挑战,应考虑避免影响白内障手术的结果。与手术前相比,前房深度和从角膜内皮到视网膜的长度明显减少。与SMILE相比,接受FS-LASIK手术的患者眼部生物统计参数的这些意想不到的变化更大。这些变化对IOL功率计算提出了明显的挑战,应考虑避免影响白内障手术的结果。
更新日期:2021-03-19
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