非老花眼受试者的视光仪和基于试验框架的von Graefe视暗测量的比较

Annah L. Tsotetsi, S. D. Mathebula
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引用次数: 0

摘要

背景:临床上有几种主观测量斜视的方法。在南非,von Graefe (VG)是一种常用的利用光度计定量暗视的技术。目的:本研究的目的是探讨使用光镜和试验架测量VG暗差的一致性。环境:该研究在南非林波波大学的验光诊所进行。方法:对88名视力正常的大学生进行了远、近水平和垂直斜视VG测量。试验架上采用手持式旋转棱镜。使用Bland-Altman统计检验比较棱镜屈光度的95%一致性限。结果:距离水平斜视的VG均值分别为0.39外斜视±2.0Δ和0.38外斜视±1.8Δ。近水平斜视平均值分别为3.69±3.3Δ和4.13±3.27Δ。远视垂直斜视的均值和标准差分别为0.18 hyperphoria±0.74和0.13 hyperphoria±0.07Δ,近视的均值和标准差分别为0.03 hyperphoria±0.71和0.07 hyperphoria±0.71Δ。结论:使用光镜和试验框架测量VG暗差测试显示,通过光镜和试验框架执行的远视力和近视力具有高度的一致性。为了临床和研究的目的,光镜和试验架可以互换使用来测量暗视。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparison of phoropter and trial frame-based von Graefe heterophoria measures in non-presbyopic participants
Background: There are several clinical techniques for the subjective measurement of heterophoria. In South Africa, von Graefe (VG) is a commonly used technique to quantify heterophoria using the phoropter.Purpose: The purpose of the study was to investigate the agreement of VG heterophoria measurement using the phoropter and a trial frame.Setting: The study was conducted at an Optometry Clinic, University of Limpopo, South Africa.Methods: Both distance and near horizontal and vertical heterophoria VG measurements were performed on 88 visually-normal university students using the phoropter and trial frame. The handheld rotary prism was used on the trial frame. The 95% limits of agreement in prism diopters were compared using the Bland-Altman statistical test.Results: For distance horizontal heterophoria, the VG means were 0.39 exophoria ± 2.0Δ and 0.38 exophoria ± 1.8Δ with the phoropter and trial frame respectively. The means for near horizontal heterophoria were 3.69 exophoria ± 3.3Δ and 4.13 exophoria ± 3.27Δ with the phoropter and trial frame. For the vertical heterophoria at distance, the means and standard deviations were 0.18 hyperphoria ± 0.74 and 0.13 hyperphoria ± 0.07Δ, while at near vision they were 0.03 hyperphoria ± 0.71 and 0.07 hyperphoria ± 0.71Δ, respectively.Conclusion: Measurement of VG heterophoria testing using the phoropter and trial frame showed a high level of agreement for both distance and near vision performed through the phoropter and a trial frame. For clinical and research purposes, the phoropter and trial frame can be used interchangeably for measuring heterophoria.
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来源期刊
African Vision and Eye Health
African Vision and Eye Health Health Professions-Optometry
CiteScore
1.00
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0.00%
发文量
46
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