A toric IOL provided sufficient rotational stability to correct pre-existing astigmatism in cataract surgery, according to a study.
The prospective, observational study included 48 eyes of 32 cataract patients with corneal astigmatism of 1 D or greater who underwent implantation of the At Torbi 709M toric IOL (Carl Zeiss Meditec) after phacoemulsification. Patients were followed up at 1 week, 1 month, 3 months and 6 months.
Postoperatively, there was significant improvement in mean logMAR uncorrected and corrected distance visual acuity (P < .05); 88.1% of eyes achieved uncorrected distance visual acuity of 20/40 or better and 61.9% achieved 20/25 or better. All eyes achieved corrected distance visual acuity of 20/40 or better and 90.2% achieved 20/25 or better.
Mean IOL axis rotation was 4.42°. Rotation was less than 10° in 86% of eyes and less than 5° in 74.4% of eyes.
“Both the visual and refractive results achieved are excellent, and rotation, described as the main postoperative complication of toric IOLs, has not been statistically significant,” the study authors said.