This document discusses a study to improve results of astigmatism correction using toric intraocular lenses (IOLs). 79 eyes underwent cataract surgery where they developed a consistent preoperative limbus marking technique and used transitional conic surface toric IOLs. A pre-operative, post-operative, and 1-month refraction evaluation was performed. The goals were to improve intraoperative alignment of toric IOLs, use transitional conic toric IOLs, and verify the accuracy of calculations for conic toric IOLs.