Treatment of Corneal Ectasia by Implantation of an Allogenic Corneal Lenticule
Treatment of Corneal Ectasia by Implantation of an Allogenic Corneal Lenticule
复制标题
植入同种异体角膜微透镜治疗角膜扩张
DOI：
10.3928/1081597x-20180323-01
复制
发表时间：
2018-05-01
影响因子：
2.4
通讯作者：
Zhou, Xingtao
中科院分区：
文献类型：
--
作者：
Li, Meiyan;Zhao, Feng;Zhou, Xingtao
目的：描述使用植入受者眼的同种异体微透镜治疗 LASIK 术后角膜扩张的病例。方法：一名 29 岁男性在 LASIK 术后 10 年后出现双侧角膜扩张。右眼的明显屈光度为-1.50 -3.25 x 15 度，左眼的明显屈光度为-13.50 -6.00 x 10 度。由于左眼对隐形眼镜不耐受，作者决定植入同种异体角膜微透镜。使用 VisuMax 激光（德国耶拿卡尔蔡司 Meditec）在屈光度为 +5.75 -0.50 x 15 度的供体眼睛中通过小切口微透镜提取而创建。预期外围厚度为116μm，中心厚度为20μm。将微透镜置于左眼原始LASIK瓣下。结果：术后10个月，左眼屈光度改善至-3.25 -1.50 x 10度，矫正远视力为20/40。与相应的术前值相比，前角膜平坦度和陡度值分别降低了 6.20 和 5.90 屈光度 (D)。在整个随访过程中角膜保持清晰。结论：同种异体微透镜植入可能是治疗晚期角膜扩张的一种选择。
PURPOSE: To describe a case in which post-LASIK corneal ectasia was treated using an allogeneic lenticule implanted into the recipient eye.METHODS: A 29-year-old man presented with bilateral ectasia 10 years after LASIK. Manifest refraction was -1.50 -3.25 x 15 degrees in the right eye and -13.50 -6.00 x 10 degrees in the left eye. Because of contact lens intolerance in the left eye, the authors decided to implant an allogenic corneal lenticule. created by small incision lenticule extraction with the VisuMax laser (Carl Zeiss Meditec, Jena. Germany) in a donor eye with a refraction of +5.75 -0.50 x 15 degrees. The intended peripheral thickness was 116 mu m and the central thickness was 20 mu m. The lenticule was placed under the original LASIK flap in the left eye.RESULTS: Ten months after surgery, refraction of the left eye had improved to -3.25 -1.50 x 10 degrees with a corrected distance visual acuity of 20/40. The front corneal flat and steep values were decreased by 6.20 and 5.90 diopters (D), respectively, relative to corresponding preoperative values. The cornea remained clear throughout the follow-up.CONCLUSIONS: Implantation of an allogenic lenticule may be an option in the treatment of advanced ectasia.