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Evaluating the relative value of intraoperative aberrometry versus current formulas for toric IOL sphere, cylinder, and orientation planning.
Journal of Cataract & Refractive Surgery ( IF 2.8 ) Pub Date : 2019-10-01 , DOI: 10.1016/j.jcrs.2019.05.023
Kerry D Solomon 1 , Helga P Sandoval 1 , Richard Potvin 2
Affiliation  

PURPOSE To retrospectively review toric intraocular lens (IOL) outcomes and compare actual results to those expected from preoperative calculations and intraoperative aberrometry (IA) in normal eyes. SETTING Carolina Eyecare Physicians, Mt. Pleasant, South Carolina, USA. DESIGN Retrospective data review of earlier clinical trial data. METHODS Toric IOL planning data and results were obtained from two previous clinical studies of normal eyes receiving toric IOL implants. Back-calculation techniques were used to estimate expected residual refractive sphere and cylinder for preoperative and IA calculations. RESULTS Toric IOL planning data and clinical outcomes for 132 eyes receiving two different toric IOLs were analyzed. The mean spherical equivalent refractions expected with preoperative planning and IA were not statistically significantly different (P = .44), but a higher percentage of eyes within ±0.50 D of the intended spherical refraction was expected with preoperative calculations (P = .05). The mean expected residual refractive astigmatism based on preoperative calculations was significantly lower than for IA (P < .001), with more eyes expected to have 0.50 D or less of residual refractive astigmatism. CONCLUSION The use of current-generation formulas for sphere power and toric IOL planning in normal eyes seems sufficient to produce clinical outcomes with toric IOLs that are as good or better than those achieved using IA.

中文翻译:

评估术中像差法相对于复曲面IOL球面,圆柱面和方向规划的当前公式的相对值。

目的回顾性研究复曲面人工晶状体(IOL)的结果,并将实际结果与正常眼中术前计算和术中像差法(IA)所预期的结果进行比较。设置卡罗莱纳州眼科医师,山。美国南卡罗莱纳州,宜人。设计对早期临床试验数据进行回顾性数据审查。方法复曲面人工晶状体计划数据和结果是从先前接受复曲面人工晶状体植入物的正常眼睛的两项临床研究获得的。反向计算技术用于估计术前和IA的预期残留屈光球和柱面。结果分析了接受两种不同复曲面人工晶状体的132只眼的复曲面人工晶状体计划数据和临床结局。术前计划和IA预期的平均球镜等效屈光度在统计学上无显着差异(P = .44),但术前计算预期在预期球镜屈光度的±0.50 D以内,较高的眼睛百分比(P = .05)。根据术前计算得出的平均预期残余屈光散光明显低于IA(P <.001),预计更多的眼睛具有0.50 D或更小的残余屈光散光。结论在正常眼中使用现代公式进行球镜度数和复曲面IOL计划似乎足以产生与使用IA所获得的效果相同或更好的复曲面IOL的临床结果。术前计算预期可得到50 D的预期球面屈光度(P = .05)。根据术前计算得出的平均预期残余屈光散光明显低于IA(P <.001),预计更多的眼睛具有0.50 D或更小的残余屈光散光。结论在正常眼中使用现代公式进行球镜度数和复曲面IOL计划似乎足以产生与使用IA所获得的效果相同或更好的复曲面IOL的临床结果。术前计算预期可得到50 D的预期球面屈光度(P = .05)。根据术前计算得出的平均预期残余屈光散光明显低于IA(P <.001),预计更多的眼睛具有0.50 D或更小的残余屈光散光。结论在正常眼中使用现代公式进行球镜度数和复曲面IOL计划似乎足以产生与使用IA所获得的效果相同或更好的复曲面IOL的临床结果。
更新日期:2019-09-26
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