Visual and Refractive Outcomes With the Eyecryl Phakic Toric IOL Versus the Visian Toric Implantable Collamer Lens: Results of a 2-Year Prospective Comparative Study

Abstract

PURPOSE: To compare the 2-year visual and refractive outcomes with the Eyecryl Phakic Toric IOL (EP TIOL) (Biotech Vision Care Pvt Ltd) and Visian Toric ICL (TICL) (STAAR Surgical) for correction of high myopic astigmatism. METHODS: This prospective, interventional, non-randomized comparison study included eligible patients who underwent toric phakic IOL surgery in one or both eyes with either the EP TIOL or TICL for myopic astigmatism. Two years postoperatively, both lenses were compared for their safety, efficacy, stability, and patient satisfaction. Vector analysis of astigmatism was performed using the Alpins method with the ASSORT software (ASSORT Party Ltd). RESULTS: A total of 50 eyes were included, of which 25 eyes received EP TIOL implantation and the remaining 25 received TICL implantation. Preoperative mean ± standard deviation of spherical equivalent (SE) and cylinder was −10.15 ± 4.04 and −2.08 ± 0.86 diopters (D) in the EP TIOL group and −10.21 ± 3.97 and −2.17 ± 0.95 D in the TICL group, respectively. At 2 years of follow-up, there was no significant difference between the mean uncorrected distance visual acuity, corrected distance visual acuity, spherical equivalent, and residual astigmatism between the two groups ( P > .05 for all parameters). Ninety-two percent of eyes in the EP TIOL group and 88% of eyes in the TICL group were within ±0.50 D of refractive astigmatism. Vector analysis of astigmatism showed a comparable Correction Index of 0.98 in the EP TIOL group and 0.94 in the TICL group, signifying a mild undercorrection of 2% and 6%, respectively. Two eyes in the TICL group underwent exchange for high vault and one eye required realignment due to significant postoperative rotation. CONCLUSIONS: At least for the first 2 years postoperatively, both toric phakic IOLs were safe and effective in managing high myopic astigmatism with comparable visual results and patient satisfaction. [ J Refract Surg . 2021;37(1):7–15.]

Factors leading to realignment or exchange after implantable collamer lens implantation in 10 258 eyes

“…2 In addition, there were sporadic reports of TICL realignment. 2,[6][7][8][9][10][11] This study confirms that the incidence of ICL realignment or exchange is low, thus suggesting that the ICL has a favorable safety profile.…”

Toric Implantable Collamer Lens for the Treatment of Myopic Astigmatism

“…Newer Toric ICL models with a central port (V4c and V5) to increase aqueous flow have been shown to decrease postoperative angle closure glaucoma. 19 Significant anterior chamber angle narrowing has been noted in other studies, 20,21 though patients in the present study did not undergo postoperative UBM to correlate anterior chamber angle changes with IOP. Other possible complications include pigment dispersion, 15 uveitis with cystoid macular edema, 15 toxic anterior segment syndrome, 13 and endophthalmitis, 13,22 none of which were seen in our study.…”

Long-term results of a new posterior chamber phakic intraocular lens in patients with high myopia: 5-year results

“…9 It is reported in the study that there was no significant difference between the mean UDVA, CDVA, and SE between the 2 groups at 2 years of follow-up. 9 Brar et al observed a UDVA of 20/20 or better in 76% of eyes in the Eyecryl toric pIOL group and 72% of eyes in the toric ICL group. 9 Ninety-two percent of eyes in the Eyecryl toric pIOL group and 88% of eyes in the toric ICL group were within ±0.50 D of SE.…”

“…Although a limited number of previous studies have reported the refractive predictability and safety of the Eyecryl PC pIOL, the mean follow-up in the longest series was 3 years. [9][10][11][12][13][14][15] The goal of the study was to assess the long-term efficacy and safety of Eyecryl posterior chamber spherical pIOL implantation in individuals with high myopia.…”