Aspheric toric IOL improves VA despite significant postop rotation
An aspheric toric IOL and aspheric non-toric IOL combined with an opposite clear corneal incision reduced cylinder in eyes with low to moderate corneal astigmatism, according to study results.
The prospective, randomized study included 39 eyes of 39 patients; mean age was 70.1 years. Eighteen eyes were implanted with a Lentis Unico L-312T aspheric toric IOL (Oculentis) and 21 eyes were implanted with a Lentis Unico L-312 aspheric non-toric IOL combined with an opposite clear corneal incision. Researchers performed corneal tomography and keratometry at 1 hour, 1 week, and 3 and 9 months after surgery.
Mean preoperative corneal astigmatism was 1.69 D in the toric IOL group and 1.67 D in the non-toric IOL group. At 3 months postoperatively, mean corneal astigmatism was significantly reduced to 0.18 D in the toric IOL group and 0.67 D in the non-toric IOL group, according to the researchers.
Additionally, the researchers found mean uncorrected distance visual acuity was significantly better in the toric IOL group than in the non-toric group, at 0.09 in the toric group and 0.29 in the non-toric group.
Mean corrected distance visual acuity was −0.03 D in the toric IOL group and 0.08 in the non-toric IOL group, which was not considered statistically significant.
Mean absolute IOL misalignment in the toric IOL group was 4.66° at 1 hour, 13.59° at 3 months and 19.9° at 9 months.
Disclosure: The authors have no relevant financial disclosures.