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Abstract：
This study aimed to develop and analyze the accuracy of predictive formulae for postoperative anterior chamber depth, tilt, and decentration of low-added-segment refractive intraocular lenses. This single-center, retrospective, observational study included the right eyes of 96 patients (mean age: 72.43 ± 6.58 years), who underwent a cataract surgery with implantation of a low-added segmented refractive intraocular lens at the Medical University Hospital between July 2019 and January 2021, and were followed up for more than 1 month postoperatively. The participants were divided into an estimation group to create a prediction formula and a validation group to verify the accuracy of the formula. Anterior segment optical coherence tomography (CASIA 2, Tomey Corporation, Japan) and swept-source optical coherence tomography biometry (IOL Master 700, Carl Zeiss Meditec AG) were used to measure the anterior ocular components. A predictive formula was devised for postoperative anterior chamber depth, intraocular lens tilt, and intraocular lens decentration (p <0.01) in the estimation group. A significant positive correlation was observed between the estimated values calculated using the prediction formula and the measured values for postoperative anterior chamber depth (r = 0.792), amount of intraocular lens tilt (r = 0.610), direction of intraocular lens tilt (r = 0.668), and amount of intraocular lens decentration (r = 0.431) (p < 0.01) in the validation group. In conclusion, our findings reveal that predicting the position of the low-added segmented refractive intraocular lens enables the prognosis of postoperative refractive values with a greater accuracy in determining the intraocular lens adaptation.
摘要：
本研究旨在开发和分析术后前房深度预测公式的准确性。倾斜,低附加段屈光人工晶状体的偏心。这个单一中心，回顾性,观察性研究包括96例患者的右眼（平均年龄：72.43±6.58岁），患者于2019年7月至2021年1月期间在医科大学医院接受了白内障手术并植入低附加分段屈光人工晶状体,术后随访超过1个月.参与者被分为评估组以创建预测公式和验证组，以验证公式的准确性。前段光学相干断层扫描(CASIA2，TomeyCorporation，日本）和扫频源光学相干断层扫描生物测量（IOLMaster700，CarlZeissMeditecAG）用于测量眼前成分。设计了术后前房深度的预测公式，人工晶状体倾斜，和估计组中的人工晶状体偏心（p<0.01）。使用预测公式计算的估计值与术后前房深度的测量值之间存在显着正相关（r=0.792），眼内透镜倾斜量（r=0.610），人工晶状体倾斜方向（r=0.668），和人工晶状体偏心量（r=0.431）（p<0.01）。总之,我们的研究结果表明,预测低附加段屈光人工晶状体的位置能够预测术后屈光值,在确定人工晶状体适应性时具有更高的准确性.
