Clinical outcomes, predictability and rotational stability following implantation of Eyecryl toric versus TECNIS toric intraocular lenses—A comparative study

Abstract

Purpose To compare the visual outcomes, predictability and rotational stability following implantation of Eyecryl toric versus TECNIS toric intraocular lenses. Methods This retrospective study included 100 eyes of 78 eligible patients who underwent phacoemulsification followed by implantation of either Eyecryl Toric IOL or TECNIS Toric IOL (n = 50 eyes in each group), using an intraoperative image-guided marker less system. All toric IOL implantations were performed under balanced salt solution. At 2 weeks, 3 months and 6 months, uncorrected (UDVA) and corrected distance visual acuity (CDVA), spherical equivalent refraction, residual astigmatism, and rotational stability of the toric IOL was evaluated and compared. Rotational stability was assessed using ray tracing.Results Mean age of the participants was 67.8 ± 9.26 years in Eyecryl toric group and 64 ± 11 years in TECNIS toric group. The mean pre-op corneal astigmatism was 1.75 ± 0.62 D and 2.00 ± 0.71 D in the Eyecryl and TECNIS group, respectively (p = 0.07). At 2 weeks and at 6 months post-op, there was no statistically significant difference between the UDVA, CDVA, and residual astigmatism between the two groups (p \ 0.05). Mean post-operative toric IOL rotation was 3.94 ± 2.27 degrees in the Eyecryl Toric group, and 4.44 ± 2.77 degrees, in the TECNIS Toric group, respectively, the difference was not statistically significant (p = 0.32). One IOL in the Eyecryl group and two IOLs in the TECNIS group required re-positioning for significant post-op rotation at 1 week post-op. Conclusion At 6 months, both Eyecryl toric and TECNIS toric IOLs showed comparable post-operative outcomes in terms of UDVA, CDVA, residual astigmatism and rotational stability.

Reproducibility of the Magnitude of Lens Rotation Following Implantation of a Toric Intraocular Lens with Modified Haptics

“…The TECNIS Toric II IOL (Model ZCU) demonstrated minimal postoperative rotation following implantation, which was reproducible between studies over the full dioptric power range. Mean absolute lens rotation was less than 1° at both the 1-day and 1-week visits, which was less than previously reported for the TECNIS Toric IOL (1° to 8.38°), 4,9,10,12,[17][18][19] confirming that the squared and frosted haptic design improved rotational stability. These data compared favorably with absolute rotation reported for other toric IOL models, including with the AcrySof Toric IOL (Alcon Laboratories, Inc., Fort Worth, TX, USA) (1.5° to 8.0°), 5,9,18,[20][21][22][23][24] the enVista Toric IOL (Bausch+Lomb, Inc. Rochester, NY, USA) (1.11° to 3.85°), 25,26 and the HOYA XY-1 (HOYA, Tokyo, Japan) (5.43°).…”

Clinical outcomes and rotational stability following implantation of a monofocal toric IOL with textured haptics in normal versus high axial lengths

“…Rotational stability of toric IOLs has been suggested to be questionable in eyes with preoperative large ALs, due to various factors increasing the likelihood and amplitude of postoperative rotation. [24][25][26][27] When we compared the 3month outcomes of Vivinex Toric IOL in normal vs high AL groups in the present retrospective study, we did not find any significant differences for postoperative outcomes, and rotational stability at 3-month follow-up. Our results resonate with the results of Guo et al, wherein the authors observed an equal astigmatism-correction efficiency and rotational stability in eyes with normal vs high myopia after implantation of the Acrysof IQ toric IOL.…”

Comparison of clinical outcomes of Eyecryl toric and Alcon toric intra-ocular lenses – A real world study

“…According to the findings of our study, patients with corneal astigmatism who had toric AcrySof and Eyecryl IOLs implanted after cataract surgery saw comparable visual results and astigmatism reduction, which are in line with similar studies. [ 1 4 9 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ] Nevertheless, this study is the first to directly examine the results of a known international toric IOL, such as AcrySof toric, with those of an Indian-made toric IOL, Eyecryl, in a secondary center in South India. Post-operative UCVA at 1 month was comparable between the two toric IOLs.…”

“…An IOL rotation of more than 10 degrees post-operatively was discovered in up to 7% of eyes across several studies involving all commonly used toric IOLs, with a high axial length, a younger age, greater pre-surgical astigmatism, and with the rule astigmatism patients having the highest rotation within the first 10 days post surgery. [ 9 10 11 12 18 20 21 22 24 29 30 43 44 ] IOL rotation less than 10 degrees typically does not require re-surgery. It has been found that hydrophobic acrylic lenses have better rotational stability than other IOL materials.…”