Use of Intraoperative Aberrometry to Confirm Spherical and Toric IOL Powers
Purpose
To evaluate refractive outcomes after routine phacoemulsification and implantation of a toric intraocular lens (IOL) when using Intraoperative Aberrometry to confirm IOL power.
Methods
Retrospective chart review of patients who underwent uneventful cataract surgery and toric IOL implantation. Eyes were divided into 2 groups: control group and Intraoperative Aberrometry group based on its use or not during surgery. Manifest refraction, percentage of eyes within ±0.25 D and ±0.50 D and visual acuity were evaluated. Comparisons between the 2 groups were done. A P < .05 was considered statistically significant.
Results
A total of 79 eyes were included in the analysis. No significant differences in mean age, amount of preoperative astigmatism, IOL power, follow-up time, manifest sphere, astigmatism and manifest refraction spherical equivalent (MRSE) between the 2 groups (P < .05, Mann Whitney U test). In the Intraoperative Aberrometry group (n = 36 eyes), 83% had residual astigmatism within 0.50 D compared to 67% in the control group (n = 43 eyes). MRSE was within ±0.50 D in 92% and 84% in the Intraoperative Aberrometry and control group, respectively. Thirty-one percent in the intraoperative Aberrometry group had UCVA of 20/20 or better compared to 17% in the control group.
Conclusion
The use of Intraoperative Aberrometry to confirm IOL power improves refractive outcomes after routine, uneventful cataract surgery with toric IOL implantation as shown by the low residual refractive astigmatism in this group.