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Conference Roundup
IOL Insertion/Toric IOLs

Non-toric small-aperture IOL effective in cataract patients with corneal astigmatism

Posted on May 2, 2022

In patients with up to 1.50 D of preoperative corneal astigmatism, consistent visual performance at distance, intermediate, and near were reported after implantation with a small-aperture IOL (IC-8 IOL), according to results of a prospective, multi-center study reported at ASCRS 2022.

In the study, 343 patients had a small-aperture IOL (IC-8 IOL) implanted in one eye and a monofocal or monofocal toric IOL in the fellow eye. Preoperative corneal astigmatism in the IC-8 IOL eye was evaluated and 273 patients with astigmatism <1.0 D were assigned to Group 1 while 70 patients with astigmatism between 1.0 D to 1.50 D were assigned to Group 2. During surgery, incisions were placed temporally ± 20° in all IC-8 eyes regardless of the pre-operative astigmatism axis. Limbal relaxing incision was not permitted during surgery.

At 12 months post-surgery, monocular uncorrected visual acuities for distance (UDVA), intermediate (UCIVA), and near (UNVA) were 0.10 ± 0.13 (20/25), 0.07 + 0.16 (20/23), and 0.20 ±0.13 (20/32), respectively, in Group 1. In Group 2, mean UCDVA, UCIVA, and UNVA were 0.09 ± 0.11 (20/25), 0.10 ± 0.18(20/25), and 0.21 ± 0.16 (20/32), respectively.

There were no statistically significant differences between the groups at any given distance.

Reference
Yeu E, et al. Evaluating Influence of Corneal Astigmatism on Visual Performance of Patients Treated with a Small-Aperture IOL. Presented at ASCRS 2022.

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