AI Article Synopsis
- The study aims to compare the visual quality, refraction results, and safety of two types of implantation surgeries (T-ICL and T-Artiflex) for correcting myopic astigmatism in patients.
- A total of 312 eyes from different patients were analyzed, with outcomes evaluated before surgery and 12 months after, focusing on visual acuity, efficacy, safety, and corneal astigmatism.
- Results showed that while both surgeries were effective, T-ICL had better efficacy and safety rankings, and both methods had similar outcomes in correcting astigmatism, with no serious complications reported.
Article Abstract
Purpose: To compare visual, refractive, and safety outcomes of toric posterior chamber Implantable Collamer Lens (T-ICL) (STAAR Surgical) and toric iris-fixated foldable phakic intraocular lens (IOL) (T-Artiflex; Ophtec BV) implantation for the correction of myopic astigmatism.
Methods: This retrospective cohort study included 312 eyes of 312 patients who had phakic IOL implantation for myopic astigmatism. Two groups were defined: 205 eyes that underwent T-ICL implantation and 107 eyes that underwent T-Artiflex implantation. Safety, efficacy, and predictability outcomes were evaluated preoperatively and at 12 months postoperatively. Refractive and corneal astigmatic vector analysis were performed using the Alpins method.
Results: One year postoperatively, uncorrected distance visual acuity was 0.05 ± 0.18 (T-ICL) and 0.10 ± 0.16 (T-Artiflex) logMAR, with efficacy indexes of 1.16 ± 0.27 and 1.05 ± 0.31, respectively ( < .001). Safety indexes were 1.28 ± 0.30 and 1.21 ± 0.31, respectively ( = .04). Spherical equivalent was within ±0.50 diopters (D) of emmetropia in 165 (80.5%) and 88 (82.2%) eyes, respectively. Refractive astigmatic analysis showed an index of success of 0.28 ± 0.33 (T-ICL) and 0.31 ± 0.26 (T-Artiflex) ( = .07). Surgically induced corneal astigmatism was 0.48 ± 0.74 and 0.81 ± 0.61 D, respectively ( < .001). Mean endothelial loss was 1.11% and 2.05%, respectively ( = .42). Six (2.9%) eyes in the T-ICL group and 1 (0.9%) eye in the T-Artiflex group had phakic IOL repositioning due to significant misalignment. No vision-threatening complications occurred.
Conclusions: Both the T-ICL and T-Artiflex groups showed high visual and refractive efficacy with a good safety profile for the correction of myopic astigmatism. T-ICL implantation demonstrated significantly better efficacy and safety indexes after 12 months. Vector analysis showed similar refractive astigmatic correction in both groups, but T-Artiflex implantation revealed higher surgically induced corneal astigmatism. .
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| http://dx.doi.org/10.3928/1081597X-20220406-01 | DOI Listing |
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