Abstract：Objective: To investigate the effect of corneal normal back-front radius ratio (B/F ratio) on the accuracy of Barrett Universal formula for calculating the refractive power of intraocular lens (IOL). Methods: This retrospective analysis focused on the clinical data of 63 patients (63 eyes)with cataracts and a normal corneal back-front radius ratio (0.780.05). Conclusions: For cataract patients with corneal normal B/F ratio, the prediction error is negatively correlated with the B/F ratio. The larger the B/F ratio, the more the prediction error drifts toward myopia. Conversely, hyperopic drifts. The regression formula of B/F ratio and prediction error is used to optimize the predicted postoperative SE, which could improve the accuracy of Barrett Universal II formula for calculating IOL.
吴万民, 柴飞燕, 刘杰为. 角膜正常B/F Ratio对Barrett UniversalⅡ公式计算IOL度数准确性的影响[J]. 中华眼视光学与视觉科学杂志, 2023, 25(1): 62-67.
Wanmin Wu, Feiyan Chai, Jiewei Liu. Effect of Corneal Normal B/FRatio on theAccuracy of Barrett Universal Formula for IOLCalculation. Chinese Journal of Optometry Ophthalmology and Visual science, 2023, 25(1): 62-67. DOI: 10.3760/cma.j.cn115909-20220503-00183
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