摘要
目的 比较Haigis、HofferQ、Holladay Ⅰ、SRK/T、Barrett universal Ⅱ、Hill-RBF3.0、Kane、EVO、Pearl-DGS人工晶状体(IOL)计算公式计算球形晶状体(MSP)患者IOL度数的准确性.方法 对 48 例(77 眼)行晶状体超声乳化吸除术联合IOL植入术的MSP患者术前进行生物学测量,术后进行综合验光,计算并比较9 种公式的预测误差(PE)和绝对误差(AE),根据眼轴(AL)、前房深度(ACD)、角膜曲率(K)、晶状体厚度(LT)的不同分组比较各公式的屈光误差情况.结果 9 种IOL公式计算的PE和AE各组间总体差异无统计学意义,P值分别是0.47和0.76.但进一步检验显示,SRK/T和Hill-RBF3.0组间PE有统计学意义(P＜0.05),PE分别为(0.62±1.38)D和(0.18±1.24)D,Hill-RBF3.0 公式在PE≤0.5 D及PE≤1.0 D的患眼百分比均最高,分别为44.12%及66.18%,Hill-RBF3.0 在浅ACD组及非浅ACD组均呈现低值,分别为0.08和0.24.Kane公式在短AL组和长AL组最准确,PE分别为0.02和0.1.K和LT在正常范围时IOL计算公式PE均＜1.结论 9 种公式在MSP手术患者IOL预测的准确性中相类似,Hill-RBF3.0 在不同ACD分组中显示出最小的PE,Kane公式在对AL的包容度更强,K和LT对公式计算的影响较小.
Abstract
Objective To compare the accuracy of various intraocular lens(IOL)power calculation formulas for microspherophakia(MSP)patients,including Haigis,HofferQ,Holladay I,SRK/T,Barrett Universal II,Hill-RBF3.0,Kane,EVO,and Pearl-DGS.Methods Preoperative biological measurements were performed in 48 patients(77 eyes)with MSP had undergone phacoemulsification combined with IOL implantation.Postoperative comprehensive refraction was conducted simultaneously with the calculation of prediction error(PE)and absolute error(AE)for the 9 formulas.The refractive error of various formulas based on different groupings according to axial length(AL),anterior chamber depth(ACD),corneal curvature(K),and lens thickness(LT)were compared.Results The overall differences in prediction errors(PE)and absolute errors(AE)among the 9 intraocular lens(IOL)formulas were not statistically significant(P-values of 0.47 and 0.76,respectively).However,post hoc tests revealed a significant difference in PE between the SRK/T and Hill-RBF3.0 formula(P<0.05),with PE values of(0.62±1.38)D and(0.18±1.24)D,respectively.The Hill-RBF3.0 formula had the highest percentage of eyes with PE≤0.5 D and PE≤1.0 D,at 44.12%and 66.18%,respectively,and showed lower PE in both shallow ACD and non-shallow ACD groups,at 0.08 and 0.24,respectively.The Kane formula was most accurate in short AL and long AL groups,with PE values of 0.02 and 0.1,respectively.The impact of K and LT on the formula calculation was similar in all groups.Conclusions The accuracy of IOL prediction in patients with microspherophakia is similar among the 9 formulas evaluated.Hill-RBF3.0 formula demonstrates the lowest prediction error among different ACD groups,while the Kane formula exhibits a higher tolerance to AL variations,with K and LT having minimal impact on the formula calculation.
基金项目
江西省教育厅科学技术研究项目(GJJ2200204)
NETL
NSTL
万方数据