Ocupharm Research Group, Department of Optometry and Vision, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain.
Ocupharm Research Group, Department of Optometry and Vision, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain.
J Optom. 2023 Oct-Dec;16(4):252-260. doi: 10.1016/j.optom.2023.03.001. Epub 2023 Apr 3.
To assess the agreement between the Eye Refract, an instrument to perform subjective automated refraction, and the traditional subjective refraction, as the gold standard, in young hyperopes under noncycloplegic and cycloplegic conditions.
A cross-section and randomized study was carried out, involving 42 participants (18.2 ± 7.7 years, range 6 to 31 years). Only one eye was chosen for the analysis, randomly. An optometrist conducted the refraction with the Eye Refract, while another different optometrist conducted the traditional subjective refraction. Spherical equivalent (M), cylindrical components (J0 and J45), and corrected distance visual acuity (CDVA) were compared between both refraction methods under noncycloplegic and cycloplegic conditions. A Bland-Altman analysis was performed to assess the agreement (accuracy and precision) between both refraction methods.
Without cycloplegia, the Eye Refract showed significantly lower values of hyperopia than the traditional subjective refraction (p < 0.009), the mean difference (accuracy) and its 95% limits of agreement (precision) being -0.31 (+0.85, -1.47) D. Conversely, there were no statistical differences between both refraction methods under cycloplegic conditions (p ≥ 0.05). Regarding J0 and J45, both refraction methods manifested no significant differences between them under noncycloplegic and cycloplegic conditions (p ≥ 0.05). Finally, the Eye Refract significantly improved CDVA (0.04 ± 0.01 logMAR) compared with the traditional subjective refraction without cycloplegia (p = 0.01).
The Eye Refract is presented as a useful instrument to determine the refractive error in young hyperopes, the use of cycloplegia being necessary to obtain accurate and precise spherical refraction.
评估 Eye Refract 在非睫状肌麻痹和睫状肌麻痹条件下对年轻远视者进行主观自动折射的结果与传统主观折射（金标准）的一致性。
进行了一项横断面和随机研究，共纳入 42 名参与者（18.2±7.7 岁，年龄 6 至 31 岁）。仅对一只眼进行分析，随机选择。一名验光师使用 Eye Refract 进行折射，另一名不同的验光师进行传统的主观折射。在非睫状肌麻痹和睫状肌麻痹条件下，比较两种折射方法的球镜等效（M）、圆柱镜分量（J0 和 J45）和矫正远视力（CDVA）。采用 Bland-Altman 分析评估两种折射方法之间的一致性（准确性和精密度）。
在未使用睫状肌麻痹剂的情况下，Eye Refract 显示出明显低于传统主观折射的远视值（p<0.009），平均差异（准确性）及其 95%一致性界限（精密度）为-0.31（+0.85，-1.47）D。相反，在睫状肌麻痹条件下，两种折射方法之间没有统计学差异（p≥0.05）。对于 J0 和 J45，在非睫状肌麻痹和睫状肌麻痹条件下，两种折射方法之间均无统计学差异（p≥0.05）。最后，与传统的非睫状肌麻痹主观折射相比，Eye Refract 显著提高了 CDVA（0.04±0.01 logMAR）（p=0.01）。
Eye Refract 是一种在年轻远视者中确定屈光不正的有用工具，睫状肌麻痹的使用是获得准确和精确的球镜折射所必需的。
