Safety and efficacy of toric implantable collamer lens V4c model – A retrospective South Indian study

Chaitanya, S Ravi; Anitha, Venugopal; Ravindran, Meenakshi; Ghorpade, Aditya; Rengappa, Ramakrishnan; Uduman, Mahammed Sithiq

doi:10.4103/ijo.ijo_1492_20

Cited by 6 publications

(3 citation statements)

References 31 publications

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“…In this meta-analysis, both treatments showed good and equal performance on predictability, 93.67% (207/221) ICL-treated eyes and 83.19% (198/238) SMILE-treated eyes achieved a predictability of within ±0.5D, 100% (221/221) and 99.58% (237/238) achieved a predictability of within ±1D. Many previous studies reported similar findings, usually more than 95% ICL-treated eyes were within ±1.00 D of the intended refraction [ 11 , 25 – 27 ]. A large retrospective study included 722 SMILE-treated high myopic eyes, 98% were within ±1.00 D of the intended refraction [ 28 ].…”

Section: Discussionmentioning

confidence: 67%

Implantable collamer lens versus small incision lenticule extraction for high myopia correction: A systematic review and meta-analysis

et al. 2021

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Purpose To compare the efficacy, safety, predictability and visual quality between implantable collamer lens (ICL) implantation and small incision lenticule extraction (SMILE) for high myopia correction in adults. Methods A systematic review and meta-analysis was conducted. A comprehensive literature search was done based on databases including PubMed, Science Direct, Embase, and the Cochrane Central Register of Controlled Trials. The efficacy index, safety index, changes in Snellen lines of corrected distance visual acuity (CDVA), predictability (difference between post-operative and attempted spherical equivalent error, SER), incidence of halos, and change in higher-order aberrations (HOAs) were compared. Mean difference (MD) and 95% confidence interval (CI) was used to estimate continuous outcomes, risk ratio (RR) and 95%CI was used to estimate categorical outcomes. Results Five observational studies involving 555 eyes were included in this review. Studies’ sample sizes (eyes) ranged from 76 to 197. Subjects’ refraction ranged from -6 diopter (D) to -12D. Study duration of most researches were 6 months or 12 months. Compared to SMILE, ICL implantation showed better efficacy index (MD=0.09, 95%CI:0.01 to 0.16) and better safety index (MD=0.08, 95%CI: 0.00 to 0.16). Compared with SMILE, more ICL-treated eyes gained one or more Snellen lines of CDVA (RR=1.54, 95%CI:1.28 to 1.86), more gained two or more lines (RR=2.09, 95%CI:1.40 to 3.13), less lost one or more lines (RR=0.17, 95%CI:0.05 to 0.63). There was no difference in predictability between two treatments, RRs of predictability of within ±0.5D and ±1D were 1.13 (95%CI: 0.94 to 1.36) and 1.00 (95%CI: 0.98 to 1.02). Compared with SMILE, ICL implantation came with a higher risk of halos [RR=1.79, 95%CI: 1.48 to 2.16] and less increase in total HOAs (MD=-0.23, 95%CI: -0.42 to -0.03). Conclusion Compared with SMILE, ICL implantation showed a higher risk of halos, but equal performance on SER control, and better performance on efficacy index, safety index, CDVA improvement and HOAs control. Overall, ICL implantation might be a better choice for high myopia correction in adults.

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Section: Discussionmentioning

confidence: 67%

Implantable collamer lens versus small incision lenticule extraction for high myopia correction: A systematic review and meta-analysis

et al. 2021

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“…The phakic IOL can correct high myopia and myopic astigmatism in patients without corneal refractive surgery, while maintaining corneal shape and accommodation and is safe, predictable, and potentially reversible. [ 32 , 33 ] In recent years, phakic IOL implantation has demonstrated outstanding efficacy and is on the verge of achieving remarkable success in refractive error correction. [ 34 , 35 ] However, complications such as anterior capsule opacity cataracts, pupillary block glaucoma, and pigmentary glaucoma remains a concern.…”

Section: Discussionmentioning

confidence: 99%

“…In our study, endothelial cell loss (ECL) was 0.9% and 2.1% in the ICL and IPCL groups, respectively, with no significant differences between them. Chaitanya et al [ 33 ] reported that the ICL group had a 4% ECL after 6 months. Edelhauser et al [ 47 ] found that the cumulative ECL for the ICL group was 8.4% to 9.5% and between 8.4% and 9.5%, after 3 and 4 years, respectively.…”

Section: Discussionmentioning

confidence: 99%

A comparative study of two phakic posterior chamber implantable lenses

Yu,

Kang,

Tchah

et al. 2024

Medicine

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This study aimed to compare the postimplantation clinical outcomes of 2 types of posterior chamber phakic intraocular lenses (IOLs): Visian™ implantable collamer lenses (ICL; EVO+ V5; Staar Surgical, Monrovia, CA) and an implantable phakic contact lens (IPCL) (IPCL V2.0, Care Group Sight Solution, India) to correct high myopia and myopic astigmatism. This retrospective study included patients who had undergone phakic IOL implantation performed by a single surgeon between March 2021 and March 2022. Preoperative assessments included slit-lamp examination, fundus examination, spherical equivalent, uncorrected distant visual acuity (UDVA), corrected distant visual acuity (CDVA), specular microscope parameters, and optical quality analysis system parameters. Postoperative assessments after 1 year included slit-lamp examination to detect adverse effects and spherical equivalent, UDVA, CDVA, specular microscope, optical quality analysis system, and anterior-segment optical coherence tomography. Eighty eyes from 42 patients (47 eyes from 24 patients in the ICL group and 33 eyes from 18 patients in the IPCL group) were included. No statistically significant differences were observed between the 2 groups regarding preoperative parameters. At 1-year postoperatively, the mean UDVA in the ICL and IPCL groups was 0.019 ± 0.040 logMAR and 0.019 ± 0.041 logMAR, respectively. The mean CDVA was 0.001 ± 0.008 logMAR and 0.001 ± 0.007 logMAR in the ICL and IPCL groups, respectively, showing no statistically significant differences. The postoperative parameters did not differ significantly between the 2 groups. The visual acuity and refractive results of both groups were excellent, and both groups exhibited similar efficacy and safety profiles.

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Three-Dimensional Quantitative Description of the Implantable Collamer Lens in the Ocular Anterior Segment of Patients With Myopia

Zhang¹,

Huang²,

Gao³

et al. 2023

American Journal of Ophthalmology

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Safety and efficacy of toric implantable collamer lens V4c model – A retrospective South Indian study

Cited by 6 publications

References 31 publications

Implantable collamer lens versus small incision lenticule extraction for high myopia correction: A systematic review and meta-analysis

Implantable collamer lens versus small incision lenticule extraction for high myopia correction: A systematic review and meta-analysis

A comparative study of two phakic posterior chamber implantable lenses

Three-Dimensional Quantitative Description of the Implantable Collamer Lens in the Ocular Anterior Segment of Patients With Myopia

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