Zarei-Ghanavati Siamak, Hassanzadeh Samira, Ambrósio Renato
Eye Research Center, Department of Ophthalmology, Mashhad University of Medical Sciences, Mashhad, Iran.
Refractive Error Research Center, Department of Optometry, Mashhad University of Medical Sciences, Mashhad, Iran.
J Curr Ophthalmol. 2022 Nov 30;34(3):357-363. doi: 10.4103/joco.joco_79_22. eCollection 2022 Jul-Sep.
To present a case of asymmetric progressive corneal ectasia following femtosecond laser-assisted small-incision lenticule extraction.
After obtaining a patient's consent, preoperative and postoperative findings were represented in this case report.
A 29-year-old woman presented with normal preoperative Placido disk-based corneal topography and tomographic findings. The corrected refractive error was -4.00 and -4.50 -1.00 × 177 in the right and left eye, respectively, with a maximal lenticule thickness of 87 and 115 μm OD/OS. Twenty months postoperatively, the patient presented with decreased vision in the left eye and mild ectatic changes in corneal shape in both eyes. The retrospective evaluation of the integrated rotating Scheimpflug tomography (Pentacam; Oculus, Wetzlar, Germany) and corneal biomechanical (Corvis ST) assessment revealed moderate susceptibility for corneal ectasia in the right eye and a significant corneal ectasia in the left eye.
This case corroborates the need for an enhanced multimodal approach to characterize the risk for postoperative corneal ectasia after laser vision correction.
介绍一例飞秒激光辅助小切口基质透镜切除术（SMILE）后出现的不对称性进行性角膜扩张病例。
在获得患者同意后，本病例报告展示了术前和术后的检查结果。
一名29岁女性术前基于Placido盘的角膜地形图和断层扫描结果均正常。右眼和左眼的矫正屈光不正分别为-4.00和-4.50 -1.00×177，最大透镜厚度右眼/左眼分别为87和115μm。术后20个月，患者左眼视力下降，双眼角膜形状出现轻度扩张性改变。对综合旋转Scheimpflug断层扫描（Pentacam；德国韦茨拉尔Oculus公司）和角膜生物力学（Corvis ST）评估的回顾性分析显示，右眼对角膜扩张的易感性为中度，左眼存在明显的角膜扩张。
本病例证实了需要采用强化的多模式方法来评估激光视力矫正术后角膜扩张的风险。
