Adjustment of Anterior Corneal Astigmatism Values to Incorporate the Likely Effect of Posterior Corneal Curvature for Toric Intraocular Lens Calculation

摘要

PURPOSE: To establish if average refractive overcorrection or undercorrection of corneal astigmatism based on the "rule" of the astigmatism occurs if toric intraocular lenses (IOLs) are calculated on the basis of anterior corneal measurements, and to calculate an adjustment for individual eyes to avoid this systematic error.