Rotational stability of a novel toric intraocular lens with an advanced optical profile.

Abstract

To examine the rotational stability of a novel toric intraocular lens (TIOL), the Tecnis Eyhance Toric II, over a course of three months. Vienna Institute for Research in Ocular Surgery, Hanusch Hospital Vienna. Prospective, unmasked, single-center study. Fifty eyes of 50 patients with cataract and regular corneal astigmatism ≥ 0.75 D were included. The Tecnis Eyhance Toric II IOL (Johnson & Johnson Vision) was implanted in one eye of each study patient. Images of the alignment axis of the IOL were taken intraoperatively, one hour, one week, and 3 months after surgery. For measurement of TIOL rotation, images were superimposed on basis of ocular landmarks. Uncorrected and corrected distance (4 meters) and intermediate (66 cm) visual acuity were assessed at the 3-months visit. There was no significant difference in rotational position between the intraoperative and 3 months timepoints, with a mean rotation of 1.35° ± 1.46° (p=0.313; n =27). No patients had to undergo repositioning of the TIOL. A significant reduction of refractive cylinder occurred from preoperatively 1.8 ± 1.1 D to 0.40 ± 0.42 D at the 3 months visit (p= 0.001; n=43) Corrected distance visual acuity improved significantly, from 0.28 ±0.16 LogMar preoperatively to -0.01 ± 0.13 LogMar 3 months postoperatively. (p=0.001; n=43). The Tecnis Eyhance Toric II showed a good visual performance with no significant rotation over a course of three months and, therefore, an excellent rotational stability. The intraocular lens showed a good safety profile with no adverse events.