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Association of refractive outcome with postoperative anterior chamber depth measured with 3 optical biometers

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Abstract

Purpose

This study evaluated the relationship between refractive outcomes and postoperative anterior chamber depth (ACD, measured from corneal epithelium to lens) measured by swept-source optical coherence tomography (SS-OCT), optical low-coherence reflectometry (OLCR), and Scheimpflug devices under the undilated pupil.

Methods

Patients undergoing cataract phacoemulsification with intraocular lens (IOL) implantation in a hospital setting were enrolled. Postoperative ACD (postACD) was performed with an SS-OCT device, an OLCR device, and a Scheimpflug device at least 1 month after cataract surgery. After adjusting the mean predicted error to 0, differences in refractive outcomes were calculated with the Olsen formula using actual postACD measured from 3 devices and predicted value.

Results

Overall, this comparative case study included 69 eyes of 69 patients, and postACD measurements were successfully taken using all 3 devices. The postACD measured with the SS-OCT, OLCR, and Scheimpflug devices was 4.59 ± 0.30, 4.50 ± 0.30, and 4.54 ± 0.32 mm, respectively. Statistically significant differences in postACD were found among 3 devices (P < 0.001), with intraclass correlation coefficients (ICCs) and Bland-Altman showing good agreement. No significant difference in median absolute error was found with the Olsen formula using actual postACD obtained with 3 devices. Percentage prediction errors were within ± 0.50 D in 65% (OLCR), 70% (Scheimpflug), and 67% (SS-OCT) calculated by actual postACD versus 64% by predicted value.

Conclusion

Substantial agreement was found in postACD measurements obtained from the SS-OCT, OLCR, and Scheimpflug devices, with a trend toward comparable refractive outcomes in the Olsen formula. Meanwhile, postACD measurements may be potentially superior for the additional enhancement of refractive outcomes.

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Data availability

The data used to support the findings of this study are available from the corresponding author upon request.

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Acknowledgements

The authors thank statistician Ling Jin from Zhongshan Ophthalmic Center, Sun Yat-sen University, for statistical consultation.

Funding

This work was supported by the National Natural Science Foundation of China (No. 81770909 and No. 81970783).

Author information

Author notes

  1. Yan Mao and Jianbing Li have contributed equally to this work and should be considered as co-first authors.

Authors and Affiliations

  1. State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, No. 7, Jinsui Road, Zhujiang Newtown, Guangzhou, China

    Yan Mao, Jianbing Li, Yingyan Qin, Yanxin Xu, Liangping Liu & Mingxing Wu

  2. Department of Ophthalmology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China

    Jianbing Li & Huanhuan Cheng

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  1. Yan Mao
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Contributions

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

Corresponding author

Correspondence to Mingxing Wu.

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Conflict of interest

The authors have no relevant financial or nonfinancial interests to disclose.

Ethical approval

This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of Zhongshan Ophthalmic Center (No. 2019KYPJ124).

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Mao, Y., Li, J., Qin, Y. et al. Association of refractive outcome with postoperative anterior chamber depth measured with 3 optical biometers. Int Ophthalmol 44, 62 (2024). https://doi.org/10.1007/s10792-024-02995-0

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