Hospital Oftalmológico de Sorocaba, Sorocaba, Brazil.
Botelho Hospital da Visão, Blumenau, Brazil.
Arq Bras Oftalmol. 2021 Jan-Feb;84(1):11-16. doi: 10.5935/0004-2749.20210002.
To determine the effect of upper blepharoplasty on corneal topography and intraocular lens power calculation using Galilei and IOLMaster.
Thirty patients submitted to upper blepharoplasty from May 2014 to March 2017 at the Hospital Oftalmológico de Sorocaba (São Paulo, Brazil) were included in this observational case series. All patients underwent imaging sessions with Galilei and IOLMaster preoperatively (baseline) and at 1 and 6 months postoperatively. Primary outcome measures using both devices included flattest, average, and steepest corneal curvature, corneal astigmatism, and blepharoplasty-induced corneal astigmatism. Determination of axial length and lens power calculation were performed using only IOLMaster (Holladay formula). Paired t-test and vectorial analysis were used for statistical analysis.
Sixty eyes from 30 patients were prospectively included. Vectorial analysis showed that 6 months after surgery, blepharoplasty induced on average 0.39 D and 0.31 D of corneal astigmatism, as measured with Galilei and IOLMaster, respectively. IOLMaster measurements showed that average corneal curvature (44.56 vs 44.64 D, p=0.01), steepest corneal curvature (45.17 vs 45.31, p=0.01) and corneal astigmatism (1.22 vs 1.34, p=0.03) were higher 6 months after surgery. IOLMaster measurements also showed that intraocular lens power was significantly smaller 6 months after surgery (22.07 vs 21.93, p=0.004). All other parameters showed no change for comparisons between baseline and 6 months (p>0.05 for all comparisons).
Upper eyelid blepharoplasty influenced intraocular lens calculation using the IOLMaster. However, the influence was not clinically significant. No topographic changes were found using Galilei.
使用 Galilei 和 IOLMaster 确定上睑成形术对角膜地形和人工晶状体屈光力计算的影响。
2014 年 5 月至 2017 年 3 月，巴西索罗卡巴眼科医院（Sorocaba，圣保罗）对 30 例接受上睑成形术的患者进行了这项观察性病例系列研究。所有患者均在术前（基线）及术后 1 个月和 6 个月进行了 Galilei 和 IOLMaster 的成像检查。两种设备的主要观察指标包括最平坦、平均和最陡峭角膜曲率、角膜散光和上睑成形术诱导的角膜散光。轴向长度和人工晶状体屈光力计算仅使用 IOLMaster（Holladay 公式）进行。采用配对 t 检验和向量分析进行统计学分析。
30 例患者的 60 只眼被前瞻性纳入。向量分析显示，术后 6 个月，Galilei 和 IOLMaster 分别测量的上睑成形术诱导的角膜散光平均为 0.39 D 和 0.31 D。IOLMaster 测量结果显示，平均角膜曲率（44.56 对 44.64 D，p=0.01）、最陡峭角膜曲率（45.17 对 45.31，p=0.01）和角膜散光（1.22 对 1.34，p=0.03）在术后 6 个月时更高。IOLMaster 测量还显示，术后 6 个月时人工晶状体屈光力明显更小（22.07 对 21.93，p=0.004）。与术后 6 个月相比，所有其他参数在基线与 6 个月之间的比较均无变化（所有比较 p>0.05）。
上睑成形术影响了 IOLMaster 人工晶状体计算，但影响无临床意义。Galilei 未发现任何地形变化。
