Effect of the Vectorial Difference Between Manifest Refractive Astigmatism and Anterior Corneal Astigmatism on Topography-Guided LASIK Outcomes

Abstract

The contribution of ORA to topography-guided clinical outcomes in most virgin eyes is negligible, with excellent efficacy, accuracy, and safety in both low ORA and high ORA groups. Myopic eyes with high ORA treated on the manifest refraction should not be excluded from topography-guided LASIK. [J Refract Surg. 2020;36(7):449-458.].