Comparison of visual efficacy and patient's satisfaction between two toric IOLs, enhanced for intermediate vision and monofocal

Abstract

Background: To compare the visual efficacy and patient satisfaction between 2 toric IOLs (TIOL), enhanced for intermediate vision or monofocal.

Methods: A retrospective chart review was performed of 100 eyes from 68 astigmatic patients who underwent cataract surgery with implantation of a Tecnis Eyhance Toric II IOL (Johnson & Johnson Vision, Irvine, CA, USA) (Group 1, 50 eyes) or Tecnis TIOL (Group 2, 50 eyes). The uncorrected distant (UDVA), intermediate (UIVA), and near (UNVA) visual acuities; residual refractive astigmatism; defocus curve; and IOL axis rotation were evaluated at 1 week, 1 month, 2 months, and 3 months postoperatively.

Results: The postoperative UDVA and UNVA refractive astigmatism values of the two groups were better than the preoperative measurements (P < 0.05), but there was no statistical difference between the two groups (P > 0.05). The postoperative UIVA of group 1 (0.18 ± 0.15 logMAR) was significantly better than that of group 2 (0.30 ± 0.25) (P < 0.05). The mean postoperative IOL rotation of group 1 (2.51 ± 0.79°) was lower than that of group 2 (3.02 ± 0.84°) (P < 0.05). Overall satisfaction of group 1 (1.27 ± 0.47) was better than that of group 2 (2.02 ± 0.53) (P < 0.05).

Conclusions: The Tecnis Eyhance Toric II IOL demonstrated less postoperative IOL rotation and excellent uncorrected intermediate vision compared with the Tecnis TIOL. Near visual acuity and overall satisfaction with the Tecnis Eyhance Toric II IOL were also higher than those with the Tecnis TIOL.

Keywords: Enhanced monofocal TIOL; IOL rotation; Intermediate vision; Monofocal TIOL.

Fig. 1

Mean defocus curves of the two intraocular lens groups logMAR = logarithm of the minimum angle of resolution. The TECNIS Eyhance Toric II IOL (DIU) provided significantly better defocus results at -1.5 D and -2.0 D of defocus range (corresponding to 66 ~ 50 cm) compared with the TECNIS Toric IOL (ZCT) (P < 0.05). *: P < 0.05.  Values are presented as mean ± SD

Fig. 2

Amount of IOL axis rotation after cataract surgery from 1 day to 3 months. IOL axis rotation was significantly smaller with the TECNIS Eyhance Toric II IOL (DIU) than with the TECNIS Toric IOL (ZCT) (p < 0.05). *: P < 0.05.  Values are presented as mean ± SD

Fig. 3

Double-angle plots of refractive astigmatism prediction errors evaluated with centroids, standard deviation of the centroids, and 95% confidence ellipses of the prediction errors. There was no significant difference of prediction errors in both groups (P > 0.05). Each ring = 0.50 diopters (D)