Omar Yousif M, Elkitkat RS, Abdelsadek Alaarag N, et al. - Researchers conducted this cross-sectional study to explore the connection between corneal astigmatism and corneal image quality parameters (ie, root mean square [RMS] of some major corneal higher-order aberrations [HOAs] “namely RMS of coma aberrations, RMS of trefoil aberrations, and RMS of spherical aberration [RMS-SA]” and Strehl ratio [SR] of point spread function [PSF]) by using the Sirius topographer (CSO Italia, Florence, Italy). They used the Sirius topographer to assess the naïve corneas of the right eyes (n = 1,356). There were significant differences in corneal HOAs among astigmatic groups but the mean values were very similar. The deduced relationship between corneal astigmatism and corneal image quality parameters was of limited clinical relevance. Corneal astigmatism should, therefore, be assessed separately from corneal image quality parameters, either when deciding between refractive correction modalities (customized vs optimized ablation techniques) or when assessing the corneal image quality of the naïve cornea.