See Figure 5 , which shows a favorable trend in final astigmatism is observed when intraoperative aberrometry guides correction in patients where the vector difference between adjusted preoperative and intraoperative cylinder is <0.5 D.
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Comparison of Preoperative Measurements with Intraoperative Aberrometry in Predicting Need for Correction in Eyes with Low Astigmatism Undergoing Cataract Surgery.
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