Skip to main content

Advertisement

SpringerLink
Log in

Comparison of a new implantable collamer lens formula to standards formulas using spectral domain optical coherence tomography

  • Original Paper
  • Published:
International Ophthalmology Aims and scope Submit manuscript

Abstract

Purpose

To use spectral-domain optical coherence tomography (SD-OCT) data to develop a new implantable collamer lens (ICL) sizing formula and compare vault outcomes with the Online Calculation and Ordering System™ (OCOS) and the NK2 formula.

Methods

Consecutive eyes (n = 237) were evaluated that had undergone ICL/toric ICL implantation. Actual ICL vaults were measured, and a what-if analysis was performed to predict vault values with the NK2 formula using SD-OCT data. To develop a new formula (EPB), multiple regression analysis was performed with different parameters than the NK2 formula. Predicted vaults with NK2 and EPB formulas were compared to the actual vaults.

Results

Parameters that were correlated with optimal ICL size were white-to-white, anterior chamber width, lens rise and desired refractive correction. The mean postoperative vault was 489 ± 258 μm. At last visit, 94.5% of eyes were within the manufacturer’s acceptable vault range. Predicted vaults in the acceptable range were 74 and 87% with the NK2 and EPB formulas, respectively. Six percent had a predicted vault less than 100 μm with the EPB formula compared to 1% for actual outcomes. The NK2 formula resulted in a shift toward higher predicted vaults while the EPB formula was similar to the actual postoperative vaults but with slightly more cases with extremely low and high vaults.

Conclusion

SD-OCT data with OCOS result in good postoperative vaults. Further refinement is required to the NK2 for use with SD-OCT data. Although the EPB formula provides acceptable predicted vaults, further refinement with a larger sample size is needed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5

Similar content being viewed by others

References

  1. Igarashi A, Shimizu K, Kamiya K (2014) Eight-year follow-up of posterior chamber phakic intraocular lens implantation for moderate to high myopia. Am J Ophthalmol 157(532):539e1

    Google Scholar 

  2. Shimizu K, Kamiya K, Igarashi A, Kobashi H (2016) Long-term comparison of posterior chamber phakic intraocular lens with and without a central hole (Hole ICL and conventional ICL) implantation for moderate to high myopia and myopic astigmatism: Consort-compliant article. Medicine 95:e3270

    Article  PubMed  PubMed Central  Google Scholar 

  3. Schmidinger G, Lackner B, Pieh S, Skorpik C (2010) Long-term changes in posterior chamber phakic intraocular collamer lens vaulting in myopic patients. Ophthalmology 117:1506–1511

    Article  PubMed  Google Scholar 

  4. Alfonso JF, Lisa C, Abdelhamid A, Fernandes P, Jorge J, Montés-Micó R (2010) Three-year follow-up of subjective vault following myopic implantable collamer lens implantation. Graefes Arch Clin Exp Ophthalmol 248:1827–1835

    Article  PubMed  Google Scholar 

  5. Dougherty PJ, Rivera RP, Schneider D, Lane SS, Brown D, Vukich J (2011) Improving accuracy of phakic intraocular lens sizing using high-frequency ultrasound biomicroscopy. J Cataract Refract Surg 37:13–18

    Article  PubMed  Google Scholar 

  6. Elshafei AM, Genaidy MM, Moharram HM (2016) In vivo positional analysis of implantable collamer lens using ultrasound biomicroscopy. J Ophthalmol 2016:4060467

    PubMed  PubMed Central  Google Scholar 

  7. Zhang X, Chen X, Wang X, Yuan F, Zhou X (2018) Analysis of intraocular positions of posterior implantable collamer lens by full-scale ultrasound biomicroscopy. BMC Ophthalmol 18:114

    Article  PubMed  PubMed Central  Google Scholar 

  8. Zaldivar R, Zaldivar R, Adamek P, Quintero G, Cerviño A (2022) Descriptive analysis of footplate position after myopic implantable collamer lens implantation using a very high-frequency ultrasound robotic scanner. Clin Ophthalmol 16:3993–4001

    Article  PubMed  PubMed Central  Google Scholar 

  9. Lee DH, Choi SH, Chung ES, Chung TY (2012) Correlation between preoperative biometry and posterior chamber phakic Visian Implantable Collamer Lens vaulting. Ophthalmology 119:272–277

    Article  PubMed  Google Scholar 

  10. Cerpa Manito S, Sánchez Trancón A, Torrado Sierra O, Baptista AMG, Serra PM (2020) Inter-eye vault differences of implantable collamer lens measured using anterior segment optical coherence tomography. Clin Ophthalmol 14:3563–3573

    Article  PubMed  PubMed Central  Google Scholar 

  11. Nam SW, Lim DH, Hyun J, Chung ES, Chung TY (2017) Buffering zone of implantable Collamer lens sizing in V4c. BMC Ophthalmol 17(1):260

    Article  PubMed  PubMed Central  Google Scholar 

  12. Nakamura T, Isogai N, Kojima T, Yoshida Y, Sugiyama Y (2020) Optimization of implantable collamer lens sizing based on swept-source anterior segment optical coherence tomography. J Cataract Refract Surg 46:742–748

    Article  PubMed  Google Scholar 

  13. Nakamura T, Isogai N, Kojima T, Yoshida Y, Sugiyama Y (2018) Implantable collamer lens sizing method based on swept-source anterior segment optical coherence tomography. Am J Ophthalmol 187:99–107

    Article  PubMed  Google Scholar 

  14. Domínguez-Vicent A, Pérez-Vives C, Ferrer-Blasco T, García-Lázaro S, Montés-Micó R (2016) Device interchangeability on anterior chamber depth and white-to-white measurements: a thorough literature review. Int J Ophthalmol 9:1057–1065

    PubMed  PubMed Central  Google Scholar 

  15. Muzyka-Wozniak M, Oleszko A (2019) Comparison of anterior segment parameters and axial length measurements performed on a Scheimpflug device with biometry function and a reference optical biometer. Int Ophthalmol 39:1115–1122

    Article  PubMed  Google Scholar 

  16. Qiao Y, Tan C, Zhang M, Sun X, Chen J (2019) Comparison of spectral domain and swept source optical coherence tomography for angle assessment of Chinese elderly subjects. BMC Ophthalmol 19:142

    Article  PubMed  PubMed Central  Google Scholar 

  17. Tañá-Sanz P, Ruiz-Santos M, Rodríguez-Carrillo MD, Aguilar-Córcoles S, Montés-Micó R, Tañá-Rivero P (2021) Agreement between intraoperative anterior segment spectral-domain OCT and 2 swept-source OCT biometers. Expert Rev Med Devices 18:387–393

    Article  PubMed  Google Scholar 

  18. Elmohamady MN, Abdelghaffar W (2017) Anterior chamber changes after implantable collamer lens implantation in high myopia using pentacam: a prospective study. Ophthalmol Ther 6:343–349

    Article  PubMed  PubMed Central  Google Scholar 

  19. Yan Z, Miao H, Zhao F, Wang X, Chen X, Li M, Zhou X (2018) Two-year outcomes of visian implantable collamer lens with a central hole for correcting high myopia. J Ophthalmol. 2018: 8678352. https://doi.org/10.1155/2018/8678352

    Google Scholar 

Download references

Funding

The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

Author information

Authors and Affiliations

  1. Magrabi Hospitals and Centers, Main Jeddah Hospital, Old Makkah Rd. K3 - Khozam St, PO Box: 7344, Jeddah, Saudi Arabia

    Alaa Eldanasoury & Harkaran Bains

  2. Ingenieurbüro Pieger GmbH, Wendelstein, Germany

    Stefan Pieger

Authors
  1. Alaa Eldanasoury
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Harkaran Bains
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Stefan Pieger
    View author publications

    You can also search for this author in PubMed Google Scholar

Contributions

All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by AE, and SP. The first draft of the manuscript was written by HB and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Alaa Eldanasoury.

Ethics declarations

Conflict of interest

Authors Pieger and Bains declare they have no financial interests. Author Eldanasoury has received consultant honoraria from Staar Surgical Inc.

Ethics approval

This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of Magrabi Eye Hospital.

Consent to participate

Informed consent was obtained from all subjects included in this study.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Eldanasoury, A., Bains, H. & Pieger, S. Comparison of a new implantable collamer lens formula to standards formulas using spectral domain optical coherence tomography. Int Ophthalmol 43, 4613–4620 (2023). https://doi.org/10.1007/s10792-023-02861-5

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10792-023-02861-5

Keywords

Search

Navigation