PURPOSE To investigate the predictive value of the intracrystalline interphase point (ICIP) measured with optical low-coherence reflectometry (OCLR) to estimate the final lens position (FLP) of an intraocular lens (IOL) after cataract surgery. SETTING Alcañiz Hospital, Teruel, Spain. DESIGN Single-center retrospective descriptive study. METHODS Patients undergoing cataract surgery were enrolled. They were grouped according to the IOL implanted as follows: Group 1, Acrysof IQ aspheric SN60WF IOL (77 eyes); Group 2, enVista MX60 IOL (71 eyes); Group 3, CT Asphina 409 IOL (44 eyes). An OCLR-based biometer (Lenstar LS 900 system) was used for biometric measurements preoperatively and at 4 to 5 weeks postoperatively. RESULTS The study comprised 192 eyes of 174 patients (mean age: 76.4 years). One hundred seventy eyes (88.5%) eyes showed an absolute refractive prediction error (ARPE) less than 0.50 diopters (D). The mean ARPE was 0.25 D ± 0.21 (SD). Significantly higher FLP values were found in Group 2 compared with the other two groups (P < .001). Significantly lower ICIP values were found in the eyes with an ARPE of 0.50 D or more compared with eyes that had an ARPE less than 0.50 D in Group 1 (P = .042) and Group 2 (P = .023). The correlation of the FLP with the ICIP was good in all three groups (r ≥ 0.74, P <.001). Three linear expressions were obtained to predict the FLP from the ICIP and other preoperative data (R2: 0.85, 0.69, and 0.49 in Groups 1, 2, and 3, respectively). CONCLUSIONS The position of the ICIP measured with OCLR correlated with the FLP after cataract surgery, and it can be used to optimize IOL power calculations.

中文翻译：

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通过光学低相干反射法测得的晶内相间点的预测值，用于估计白内障手术后人工晶状体的解剖位置。

目的探讨用光学低相干反射法（OCLR）测量的晶体内相间点（ICIP）的预测值，以估计白内障手术后人工晶状体（IOL）的最终晶状体位置（FLP）。地点西班牙特鲁埃尔（Teruel）的阿尔卡尼兹（Alcañiz）医院。设计单中心回顾性描述性研究。方法纳入接受白内障手术的患者。根据植入的IOL将其分组，如下：第1组，Acrysof IQ非球面SN60WF IOL（77眼）；第2组，enVista MX60 IOL（71眼）；第3组，CT Asphina 409 IOL（44眼）。术前和术后4至5周使用基于OCLR的生物测定仪（Lenstar LS 900系统）进行生物测定。结果本研究共纳入174例患者的192眼（平均年龄：76.4岁）。一百七十只眼（88。5％）的眼睛显示出小于0.50屈光度（D）的绝对屈光预测误差（ARPE）。平均ARPE为0.25 D±0.21（SD）。与其他两组相比，第二组中的FLP值显着更高（P <.001）。在第1组（P = .042）和第2组（ARP = 0.52 D）中，ARPE小于0.50 D的眼睛的ICIP值显着降低。FLP与ICIP的相关性在所有三组中均良好（r≥0.74，P <.001）。从ICIP和其他术前数据获得了三个线性表达式来预测FLP（第1、2和3组分别为R2：0.85、0.69和0.49）。结论在白内障手术后，用OCLR测量的ICIP的位置与FLP相关，可用于优化IOL功率计算。