Predictive Formula for Refraction of Autologous Lenticule Implantation for Hyperopia Correction
Predictive Formula for Refraction of Autologous Lenticule Implantation for Hyperopia Correction
复制标题
自体晶状体植入矫正远视屈光预测公式
DOI：
10.3928/1081597x-20171016-01
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发表时间：
2017-12-01
影响因子：
2.4
通讯作者：
Zhou, Xingtao
中科院分区：
文献类型：
--
作者：
Li, Meng;Li, Meiyan;Zhou, Xingtao
目的：建立自体晶状体植入矫正远视(单眼近视，对侧远视)屈光矫正的公式。方法：在这项前瞻性研究中，连续10例(20眼)患者单眼近视，对侧远视眼。术前等效球镜近视眼为-3.31+/-1.73 D，远视眼为+4.46+/-1.97 D。对于每个患者，近视眼接受小切口晶状体摘除治疗，然后将晶状体植入对侧远视眼。平均随访17个月。结果：所有手术均获成功，无并发症发生。末次随访时远视眼的疗效指数(术后裸眼远视力/术前矫正远视力[CDVA])为0.94±/-0.35，安全指数(术后CDVA/术前矫正远视力/CDVA)为1.36+/-0.38。没有一只眼睛失去任何视觉敏锐度。10只植入眼中有6只眼(60%)在预定屈光目标的+/-1.00D以内。建立了晶状体植入术矫正度数(D)(LAC)=1.224晶状体屈光度(D)-0.063(R-2=0.92P<；.001)的预测公式。在角膜地形图上，术后角膜前表面屈光力测量值明显增加，而后表面角膜曲率测量值保持稳定(P>；0.05)。结论：自体晶状体植入术为矫正远视提供了可靠的方法。屈光矫正公式可能需要进一步验证和调整。
PURPOSE: To create a formula to predict refractive correction of autologous lenticule implantation for correction of hyperopia (with myopia in one eye and hyperopia in the contralateral eye).METHODS: In this prospective study, 10 consecutive patients (20 eyes) who had myopia in one eye and hyperopia in the contralateral eye were included. The preoperative spherical equivalent was -3.31 +/- 1.73 diopters (D) for the myopic eyes and +4.46 +/- 1.97 D for the hyperopic eyes. For each patient, the myopic eye was treated with small incision lenticule extraction and the lenticule was subsequently implanted into the contralateral hyperopic eye. The average length of follow-up was 17 months.RESULTS: All of the operations were successful without complications. At the last visit, the efficacy index (postoperative uncorrected distance visual acuity/preoperative corrected distance visual acuity [CDVA]) of the hyperopic eyes was 0.94 +/- 0.35 and the safety index (postoperative CDVA/preoperative CDVA) was 1.36 +/- 0.38. No eyes lost any lines of visual acuity. Six of 10 (60%) of the implanted eyes were within +/- 1.00 D of the intended refractive target. A predictive formula was derived: Lenticule implantation achieved correction (D) (LAC) = 1.224 Lenticule refractive power (D) (LRP) -0.063 (R-2 = 0.92, P < .001). On corneal topography, there was a significant increase in the corneal anterior surface keratometry value postoperatively, whereas the posterior surface keratometry value remained stable (P > .05).CONCLUSIONS: Autologous lenticule implantation could provide a reliable method of correcting hyperopia. The refractive correction formula may require further verification and adjustment.