Emmanuel Eric Pazo

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Comparing School‐Aged Refraction Measurements Using the 2WIN‐S Portable Refractor in Relation to Cycloplegic Retinoscopy: A Cross‐Sectional Study

Ziming Liu, Emmanuel Eric Pazo, Hong Ye, Cui Yu, Ling Xu, Wei He

Journal of Ophthalmology, 2021 · article · doi:10.1155/2021/6612476 · cited by 15 · Open access (CC BY)

Myopia & refractive errorRetina & vascular imaging

Abstract

PURPOSE: To assess the repeatability and agreement of refractive measurements using 2WIN-S photoscreening with the gold-standard cycloplegic retinoscope refraction. DESIGN: Single centre, cross-sectional study. METHODS: Spherical, cylindrical, axis, and spherical equivalent of 194 bilateral eyes of 97 children were assessed using a retinoscope and 2WIN-S. One week later, another operator repeated the 2WIN-S measurements. The primary outcome measures were to assess the repeatability and agreement between spherical equivalent, J0, and J45 readings of 2WIN-S. The repeatability of measurements was assessed by the within-subject standard deviation (2.77 Sw) and intraclass correlation coefficient (ICC). The agreement between devices was assessed using 95% limits of agreement. The extent of the agreement between cycloplegic retinoscopy and noncycloplegic 2WIN-S measurements was assessed using Bland-Altman analysis. RESULTS: value >0.86). ICC for SE, J0, and J45 was 0.900, 0.666, and 0.639, respectively; Sw for SE, J0, and J45 was 0.61D, 0.30D, and 0.31D, respectively; Bland-Altman analysis of retinoscopy with cycloplegia and 2WIN-S for SE was 184/194 (95%) in 95% confidence interval, and the mean value was 0.46. J0 was 184/194 (95%), and the mean value is -0.04. J45 was 181/194 (93%), and the mean value is -0.15. CONCLUSION: The objective refractive measurement of 2WIN-S had good reliability and high agreement with the gold-standard retinoscopy refraction in children and adolescents. While consistency was observed, it is essential to take into consideration that it is a screening tool.

Keywords: cycloplegic retinoscopy; refractive error measurement; children and adolescents; repeatability; spherical equivalent; astigmatism axis; non-cycloplegic refraction; school vision screening

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How to cite

Liu, Z., Pazo, E. E., Ye, H., Yu, C., Xu, L., He, W. (2021). Comparing School‐Aged Refraction Measurements Using the 2WIN‐S Portable Refractor in Relation to Cycloplegic Retinoscopy: A Cross‐Sectional Study. Journal of Ophthalmology. https://doi.org/10.1155/2021/6612476

@article{liu2021comparing,
  title = {{Comparing School‐Aged Refraction Measurements Using the 2WIN‐S Portable Refractor in Relation to Cycloplegic Retinoscopy: A Cross‐Sectional Study}},
  author = {Liu, Ziming and Pazo, Emmanuel Eric and Ye, Hong and Yu, Cui and Xu, Ling and He, Wei},
  journal = {Journal of Ophthalmology},
  year = {2021},
  doi = {10.1155/2021/6612476},
  url = {https://doi.org/10.1155/2021/6612476},
}

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