Effect of the Difference Between the White-to-White and Sulcus-to-Sulcus on Vault and the Related Factors After ICL Implantation

Chen, Xun; Han, Tian; Zhao, Wuxiao; Wang, Xuanqi; Xu, Yilin; Cheng, Mingrui; Wang, Xiaoying; Zhou, Xingtao

doi:10.1007/s40123-021-00386-7

Cited by 16 publications

(11 citation statements)

References 23 publications

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“…The influence of other factors such as white-to-white diameter (WTW) and preoperative spherical equivalent refractive error had no effect [55][56][57][58]. Although WTW can indirectly predict STS, the WTW diameter was further away from 11.08 to 12.51 mm, or the ACD was further away from 2.81 to 3.74 mm, the correlation between the STS and WTW diameters was weaker [59].…”

Section: Abnormality Of Arch Heightmentioning

confidence: 99%

Analysis of perioperative problems related to intraocular Implantable Collamer Lens (ICL) implantation

et al. 2022

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Purpose To introduce a modified procedure of ICL implantation, to summarize the perioperative problems and their corresponding treatment after myopia correction with Implantable Collamer Lens (ICL), and to compare the difference of complications between the no-hole ICL and hole ICL. Methods We searched all articles on ICL-related perioperative problems and their corresponding treatment in Scopus, Embase, PubMed and Web of Science databases for the last 22 years. Results ICL implantation is safe, effective, stable and predictable in the correction of myopia, hyperopia and astigmatism, but can also cause a series of perioperative problems, including intraoperative and postoperative complications. Conclusion There are many kinds of complications related to ICL, but the common intraoperative and postoperative complications mainly include abnormality of arch height, abnormal position of ICL, loss of corneal endothelial cells and corneal decompensation, high intraocular pressure and secondary glaucoma, cataract and night vision symptoms. Compared with ICL without central pore, the incidence of complications such as loss of corneal endothelial cells and corneal decompensation, high intraocular pressure and secondary glaucoma and cataract was relatively lower in central hole ICL, while postoperative complications such as night vision symptoms were obvious.

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Section: Abnormality Of Arch Heightmentioning

confidence: 99%

Analysis of perioperative problems related to intraocular Implantable Collamer Lens (ICL) implantation

et al. 2022

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“…In addition, another of their studies showed similar results [34]. Chen et al [29] also suggested that as the anterior chamber depth increased, the difference between the STS and WTW increased. These results are consistent with our ndings.…”

Section: Discussionmentioning

confidence: 62%

“…In Guber et al's [28] study, the horizontal WTW measures obtained using the Pentacam device were signi cantly larger than the STS measures (bias = 0.91 mm, P < 0.01). Chen et al [29] reported that the mean difference between the STS and WTW was − 0.02 +/-0.33 (-1.36 to 1.11) mm. Hashemian et al [30] also suggested that there was a correlation between the WTW and STS but found a signi cant difference in their measurements that could diminish after adjustment.…”

Section: Discussionmentioning

confidence: 99%

A Prediction Model For Sulcus-To-Sulcus Diameter In Myopic Eyes: A 1466-Sample Retrospective Study

zhu¹,

Zhu²,

Chen³

et al. 2022

Preprint

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Background: To establish and verify the accuracy and reliability of a sulcus-to-sulcus diameter (STS) prediction model.Methods: In this retrospective study, the prediction formula was established with the data from 1466 eyes from 733 subjects from July 2020 to April 2021 and verified with the data from 278 eyes from 139 subjects between May 2021 and June 2021. Each subject was measured with a Pentacam, IOLMaster 700, OPD-Scan III, and ultrasound biomicroscope. The prediction formulas were established with multiple linear regression, and intergroup correlation coefficients (ICCs) and Bland–Altman tests were used to assess the agreement between the predicted and actual STS.Results: The explanatory variables relevant to the horizontal STS (STSH) were the Pentacam white-to-white diameter (WTWP; standardized partial regression coefficient [β] = 0.330; p < 0.001), the flat K value (β = -0.211; p < 0.001), and the anterior corneal diameter (ACD) (β = 0.178; p < 0.001). The corresponding multiple regression equation was : STSH (mm) = 8.061 + 0.510 × WTWP - 0.090 × Flat K value + 0.430 × ACD. The explanatory variables relevant to the vertical STS (STSV) were the WTWP (β = 0.435; p < 0.001), the steep K value (β = -0.271; p < 0.001), and the ACD (β = 0.187; p < 0.001). The corresponding multiple regression equation was : STSV (mm) = 8.540 + 0.492 × WTWP - 0.075 × Steep K value + 0.329 × ACD. The bias of the predicted to the actual STSH was -0.021, with 95% limits of agreement (95% LoA) from -0.499 to 0.457. The bias of the predicted to the actual STSV was 0.057, with 95% LoA from -0.462 to 0.575. The ICC was 0.883 between the predicted and actual STSH and 0.859 between the predicted and actual STSV.Conclusions: The Pentacam-measured WTW, the K value and the ACD are important for predicting the STS diameter. The prediction model has good accuracy and reliability.Trial registration: Not applicable

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“…In Guber et al‘s [ 28 ] study, the horizontal WTW measures obtained using the Pentacam device were significantly larger than the STS measures (bias = 0.91 mm, P < 0.01). Chen et al [ 29 ] reported that the mean difference between the STS and WTW was − 0.02 +/- 0.33 (-1.36 to 1.11) mm. Hashemian et al [ 30 ] also suggested that there was a correlation between the WTW and STS but found a significant difference in their measurements that could diminish after adjustment.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, another of their studies showed similar results [ 34 ]. Chen et al [ 29 ] also suggested that as the anterior chamber depth increased, the difference between the STS and WTW increased. These results are consistent with our findings.…”

Section: Discussionmentioning

confidence: 99%

A prediction model for sulcus-to-sulcus diameter in myopic eyes: a 1466-sample retrospective study

Zhu

Chen

et al. 2022

BMC Ophthalmol

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Background To establish and verify the accuracy and reliability of a sulcus-to-sulcus diameter (STS) prediction model. Methods In this retrospective study, the prediction formula was established with the data from 1466 eyes from 733 subjects from July 2020 to April 2021 and verified with the data from 278 eyes from 139 subjects between May 2021 and June 2021. Each subject was measured with a Pentacam, IOLMaster 700, OPD-Scan III, and ultrasound biomicroscope. The prediction formulas were established with multiple linear regression, and intergroup correlation coefficients (ICCs) and Bland–Altman tests were used to assess the agreement between the predicted and actual STS (actual STS was measured by UBM). Results The explanatory variables relevant to the horizontal STS (STSH) were the Pentacam white-to-white diameter (WTWP; standardized partial regression coefficient [β] = 0.330; p < 0.001), the flat K value (β = -0.211; p < 0.001), and the anterior corneal diameter (ACD) (β = 0.178; p < 0.001). The corresponding multiple regression equation was : STSH (mm) = 8.061 + 0.510 × WTWP − 0.090 × Flat K value + 0.430 × ACD. The explanatory variables relevant to the vertical STS (STSV) were the WTWP (β = 0.435; p < 0.001), the steep K value (β = -0.271; p < 0.001), and the ACD (β = 0.187; p < 0.001). The corresponding multiple regression equation was : STSV (mm) = 8.540 + 0.492 × WTWP − 0.075 × Steep K value + 0.329 × ACD. The bias of the predicted to the actual STSH was − 0.021, with 95% limits of agreement (95% LoA) from − 0.499 to 0.457. The bias of the predicted to the actual STSV was 0.057, with 95% LoA from − 0.462 to 0.575. The ICC was 0.883 between the predicted and actual STSH and 0.859 between the predicted and actual STSV. Conclusions The Pentacam-measured WTW, the K value and the ACD are important for predicting the STS diameter. The prediction model has good accuracy and reliability. Trial registration Not applicable.

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Effect of the Difference Between the White-to-White and Sulcus-to-Sulcus on Vault and the Related Factors After ICL Implantation

Cited by 16 publications

References 23 publications

Analysis of perioperative problems related to intraocular Implantable Collamer Lens (ICL) implantation

Analysis of perioperative problems related to intraocular Implantable Collamer Lens (ICL) implantation

A Prediction Model For Sulcus-To-Sulcus Diameter In Myopic Eyes: A 1466-Sample Retrospective Study

A prediction model for sulcus-to-sulcus diameter in myopic eyes: a 1466-sample retrospective study

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