Fig. 1

Schematic figure showing astigmatic components and effect of different treatment strategies. a. Different astigmatic components and coma-like HOAs. b. Simulated effect after strategy 2 (treating t along with coma-like HOAs), resulting in double correction of the astigmatic contribution of coma-like HOAs. c. Simulated effect after strategy 1 (treating total corneal astigmatism along with coma-like HOAs), resulting in uncorrected lenticular astigmatism. d. Simulated effect after correction of ocular astigmatism along with coma-like HOAs, resulting in full correction