Assessing the efficacy of four methods established by four parameters in ICL size selection and relevant influencing factors: a prospective cohort study

Tang, Chuhao; Chen, Jiawei; Liu, Yiyun; Sun, Tong; Duan, Hongyu; Liu, Yilin; Li, Wenlong; Qi, Hong

doi:10.1007/s10792-023-02888-8

Cited by 5 publications

(4 citation statements)

References 16 publications

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“…[ 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. [ 8 , 36 – 38 ] Complications are more likely to occur because of an improper phakic IOL size.…”

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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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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“…CRL can affect the position and movement of the natural lens and the ICL, excessive CLR can lead to potential complications such as contact between the ICL and the natural lens, which may result in elevated IOP. Therefore, accurate preoperative ocular measurements, such as ACD, white-to-white (WTW) distance, angle-to-angle (ATA) distance, angle Kappa, accommodative amplitude, sulcus-to-sulcus (STS) diameter and anterior segment optical coherence tomography (AS-OCT) are very important for preoperative crystal selection and appropriate postoperative ICL vault prediction ( 22 , 32 , 33 ).…”

Section: Excessive Icl Vaultmentioning

confidence: 99%

Causes and management strategies for elevated intraocular pressure after implantable collamer lens implantation

Gong,

Deng,

Dang

et al. 2024

Front. Med.

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With the widespread application of Implantable Collamer Lens (ICL) implantation surgery in the field of myopia correction, a comprehensive understanding of its potential complications, especially those related to intraocular pressure (IOP), becomes crucial. This article systematically reviews various complications that may lead to IOP elevation after ICL surgery. Firstly, common complications after ICL surgery, including residual viscoelastic, steroid response, and excessive vault of the ICL, are detailed, emphasizing their potential impact on intraocular pressure. Regarding residual viscoelastic, we delve into its direct relationship with postoperative elevated IOP and possible preventive measures. For steroid response, we stress the importance of timely adjustment of steroid therapy and monitoring intraocular pressure. Additionally, excessive vault of the ICL is considered a significant potential issue, and we elaborate on its mechanism and possible management methods. In further discussion, we focus on relatively rare complications such as Toxic Anterior Segment Syndrome (TASS), Urrets-Zavalia Syndrome (UZS), Pigment Dispersion Syndrome (PDS), and malignant glaucoma. For these relatively rare complications, this review thoroughly explores their potential mechanisms, emphasizes the importance of prevention, and provides guidance for early diagnosis and treatment. This is a comprehensible review that aims to offer eye care professionals a comprehensive understanding and effective management guidance for complications of elevated IOP after ICL surgery, ultimately providing optimal care for patients’ visual health.

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“…7 8 Nowadays, some studies have used formula regression methods to analyse the size of ICL. [9][10][11][12][13][14] These studies have incorporated a few parameters, leading to a poor fit in multiple parameter regressions, which does not adequately consider various aspects for predicting the ICL size. Thus, it is necessary to build an accurate ICL selection system.…”

Section: Strengths and Limitations Of This Studymentioning

confidence: 99%

“…However, due to the indirect measurement of eye parameters, differences in the anatomical structure of the anterior segment, and the fact that only four ICL sizes are available for implantation in the market, the patient’s postoperative vaults may be too high or too low 7 8. Nowadays, some studies have used formula regression methods to analyse the size of ICL 9–14. These studies have incorporated a few parameters, leading to a poor fit in multiple parameter regressions, which does not adequately consider various aspects for predicting the ICL size.…”

Section: Introductionmentioning

confidence: 99%

Clinical decision support system based on deep learning for evaluating implantable collamer lens size and vault after implantable collamer lens surgery: a retrospective study

Yang,

Long,

Lei

et al. 2024

BMJ Open

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ObjectivesTo aid doctors in selecting the optimal preoperative implantable collamer lens (ICL) size and to enhance the safety and surgical outcomes of ICL procedures, a clinical decision support system (CDSS) is proposed in our study.DesignA retrospective study of patients after ICL surgery.SettingChina Tertiary Myopia Prevention and Control Center.Participants2772 eyes belonging to 1512 patients after ICL surgery. Data were collected between 2018 and 2022.Outcome measuresA CDSS is constructed and used to predict vault at 1 month postoperatively and preoperative ICL dimensions using various artificial intelligence methods. Accuracy metrics as well as area under curve (AUC) parameters are used to determine the CDSS prediction methods.ResultsAmong the ICL size prediction models, conventional neural networks (CNNs) achieve the best prediction accuracy at 91.37% and exhibit the highest AUC of 0.842. Regarding the prediction model for vault values 1 month after surgery, CNN surpasses the other methods with an accuracy of 85.27%, which has the uppermost AUC of 0.815. Thus, we select CNN as the prediction algorithm for the CDSS.ConclusionsThis study introduces a CDSS to assist doctors in selecting the optimal ICL size for patients while improving the safety and postoperative outcomes of ICL surgery.

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Assessing the efficacy of four methods established by four parameters in ICL size selection and relevant influencing factors: a prospective cohort study

Cited by 5 publications

References 16 publications

A comparative study of two phakic posterior chamber implantable lenses

A comparative study of two phakic posterior chamber implantable lenses

Causes and management strategies for elevated intraocular pressure after implantable collamer lens implantation

Clinical decision support system based on deep learning for evaluating implantable collamer lens size and vault after implantable collamer lens surgery: a retrospective study

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