Rotational stability and visual performance of aberration-free, hydrophobic acrylic monofocal toric intraocular lens with enhanced material.

Purpose: To evaluate the rotational stability and visual performance of the enVista toric intraocular lens (IOL) (MX60ET) in cataract patients with preexisting astigmatism.

Setting: 6 U.S. sites.

Design: Prospective, multicenter.

Methods: Cataract patients 18 years and older with preexisting astigmatism (0.77 to 4.53 diopters [D]) underwent phacoemulsification and implantation of enVista toric IOL (MX60ET). Outcome measures were the proportion of patients with absolute IOL axis rotation of ≤5 degrees, uncorrected and corrected distance visual acuities (UDVA and CDVA) at 4 m, uncorrected intermediate visual acuity (UIVA) at 66 cm, manifest refraction, and adverse events. The patients were followed up on days 1 to 2, 7 to 14, 30 to 60, and 120 to 180.

Results: Mean astigmatism of 101 eyes (101 patients) reduced from 1.47 ± 0.64 D preoperatively to 0.38 ± 0.38 D at days 120 to 180 ( P < .001), with 88.1% (N = 89/101) of eyes achieving astigmatism within 0.75 D. Mean postoperative UDVA and UIVA were 0.10 ± 0.16 and 0.25 ± 0.15 logMAR, respectively. While 79.2% (N = 80/101) of patients had postoperative UDVA of 20/32 or better, 63.9% (N = 62/97) had UIVA of 20/40 or better. The mean toric IOL rotation from the operative visit to days 30 to 60 was 1.97 ± 2.06 degrees, with 97.4% (N = 74/76) of eyes showing toric IOL rotation of 5 degrees or less.

Conclusions: The enhanced enVista toric IOL (MX60ET) demonstrated excellent rotational stability and astigmatic outcomes indicating good efficacy of the IOL for the correction of astigmatism during cataract surgery.