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Distribution of ultrasound cyclo plasty probe models in Chinese patients with glaucoma

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Abstract

Purpose

To investigate the distribution of ultrasound cyclo plasty (UCP) probe models in Chinese patients with glaucoma.

Methods

Patients needing glaucoma surgery were recruited at Zhongshan Ophthalmic Center from January 2019 to December 2019. Patient demographics were recorded and analyzed. Visual acuity, intraocular pressure (IOP), retinal nerve fiber layer (RNFL), mean defect of visual field (MD), ocular axial length (AL) and horizontal corneal diameter (white to white, WTW) of eyes with glaucoma were measured. In addition, the UCP probe models were calculated using a nomogram tool and two ocular anatomical parameters: WTW and AL.

Results

A total of 1281 patients (2000 eyes) were included in the study, including 559 males (43.64%) and 722 females (56.36%). The age of the patients ranged from 18 to 91 years, with a mean age of 61.43 ± 12.21 years. IOP ranged from 22.0 to 60.0 mmHg, with a mean of 26.17 ± 3.52 mmHg. The mean AL and WTW were 22.96 ± 1.43 (ranging from 19.07 to 35.00) and 11.55 ± 0.50 (ranging from 9.6 to 13.7), respectively. According to the results calculated by the nomogram tool, Chinese patients’ eyes mainly adapted to Model 12, with a percentage of 69.05%. Model 13 and Model 11 were suitable for 26.65% and 3.35% of the patients, respectively. A total of 0.95% of Chinese patients did not have a suitable probe model.

Conclusion

For Chinese patients who needed glaucoma surgery, UCP probe models were mainly attributed to Model 12, followed by Model 13, and Model 11 was the least used.

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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

This study was supported by the National Natural Science Foundation of China under Grant No.81970808 and the Natural Science Foundation of Guangdong Province under Grant Nos.2019A1515011196 and 2020A1515010121.

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The authors have not disclosed any funding.

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Authors and Affiliations

  1. State Key Laboratory of Ophthalmology, Guangdong Provincial Clinical Research Center for Ocular Diseases, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, 510060, China

    Shaoyang Zheng, DingQiao Wang, Zhihong Huang, Liming Chen, Huanling Hu, Meng Hu, Zhixin Tang, Chengguo Zuo & Mingkai Lin

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  1. Shaoyang Zheng
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  2. DingQiao Wang
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  3. Zhihong Huang
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Correspondence to Chengguo Zuo or Mingkai Lin.

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Zheng, S., Wang, D., Huang, Z. et al. Distribution of ultrasound cyclo plasty probe models in Chinese patients with glaucoma. Int Ophthalmol 43, 4435–4441 (2023). https://doi.org/10.1007/s10792-023-02818-8

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