Blaylock JF, et al. - This retrospective study was undertaken to determine if intraoperative aberrometry (IA) improves astigmatic outcomes for trifocal toric IOL (TTI) cases. The authors examined 137 eyes that underwent cataract extraction and TTI implantation using femtosecond laser, digital registration, and IA. Using the cylinder power calculated preoperatively, postoperative residual astigmatism (PRA) determined by manifest refraction was compared to back-calculated residual astigmatism (BRA). The proportion of eyes with PRA ≤ 0.50 D and mean PRA was significantly lower utilizing IA vs the preoperative planned cylinder power.