Department of Orthoptics and Visual Sciences, School of Health Sciences, International University of Health and Welfare , Tochigi.
Strabismus. 2020 Dec;28(4):186-193. doi: 10.1080/09273972.2020.1832542. Epub 2020 Oct 16.
We determined the repeatability-reproducibility of refraction values and pupil size measured using the Spot Vision Screener and compare the obtained values with those measured using the binocular open-field autorefractor Grand Seiko WAM 5500 in healthy adults. This cross-sectional study included 22 eyes of 22 healthy adults with emmetropia to myopia. For each participant, spherical equivalent value, cylindrical value, and pupil size were measured in the right eye using the Spot Vision Screener and Grand Seiko autorefractor devices by two different orthoptists under two conditions: monocular and binocular (three consecutive refraction measurements). Repeatability-reproducibility of values measured using both devices were evaluated using intra-class correlation coefficients (ICCs). The mean spherical equivalent value measured using the Spot Vision Screener was -2.79D in the monocular condition and -2.69D in binocular condition, which showed a small significant difference to those measured using the Grand Seiko autorefractor (-2.98D and -2.93D, respectively). The mean cylindrical value measured using the Spot Vision Screener was -0.59D in the monocular condition and -0.52D in the binocular condition, which showed a small significant difference compared with those measured using the Grand Seiko autorefractor in the binocular condition (-0.70D and -0.75D, respectively). Correlation coefficients of the spherical equivalent values, cylindrical values, and pupil sizes measured using both devices were R=0.959 (P<0.001), R=0.243 (P=0.260) and R=0.917 (P<0.001), respectively, in the monocular condition and R=0.962 (P<0.001), R=0.444 (P=0.040), and R=0.832 (P<0.001), respectively, in the binocular condition. ICC values of spherical equivalent value in intra-rater or inter-rater were more than 0.99 in both devices and conditions. ICC values of cylindrical values under the binocular condition in the Spot Vision Screener were 0.636 in intra-rater and 0.574 in inter-rater, which were lower than those of the Grand Seiko autorefractor (0.874 and 0.839, respectively). ICC values of pupil sizes under the binocular condition in the Spot Vision Screener were 0.871 in intra-rater and 0.760 in inter-rater, which were lower than those of the Grand Seiko autorefractor (0.967 and 0.943, respectively). The refractive value and pupil size obtained using the Spot Vision Screener showed high repeatability and reproducibility and were similar to the values obtained using the Grand Seiko autorefractor. Thus, the Spot Vision Screener, an automated vision screener, is a reliable portable refractor and pupillometry device for measuring refractive errors in clinical settings.
我们确定了使用 Spot Vision Screener 测量的屈光度和瞳孔大小的重复性和再现性，并将获得的值与使用双眼开放式自动验光仪 Grand Seiko WAM 5500 在健康成年人中测量的值进行比较。这项横断面研究包括 22 名正视至近视的健康成年人的 22 只眼睛。对于每个参与者，使用 Spot Vision Screener 和 Grand Seiko 自动验光仪在右眼分别进行单眼和双眼（三次连续屈光测量）条件下的等效球镜值、圆柱镜值和瞳孔大小测量。使用两种设备测量的重复性和再现性使用组内相关系数（ICC）进行评估。使用 Spot Vision Screener 测量的等效球镜平均值在单眼条件下为-2.79D，在双眼条件下为-2.69D，与使用 Grand Seiko 自动验光仪测量的平均值相比有较小的显著差异（分别为-2.98D 和-2.93D）。使用 Spot Vision Screener 测量的平均圆柱镜值在单眼条件下为-0.59D，在双眼条件下为-0.52D，与使用 Grand Seiko 自动验光仪在双眼条件下测量的值相比有较小的显著差异（分别为-0.70D 和-0.75D）。两种设备测量的等效球镜值、圆柱镜值和瞳孔大小的相关系数在单眼条件下分别为 R=0.959（P<0.001）、R=0.243（P=0.260）和 R=0.917（P<0.001），在双眼条件下分别为 R=0.962（P<0.001）、R=0.444（P=0.040）和 R=0.832（P<0.001）。在两种设备和两种条件下，观察者内和观察者间的等效球镜值 ICC 值均大于 0.99。Spot Vision Screener 中双眼条件下圆柱镜值的 ICC 值在观察者内为 0.636，在观察者间为 0.574，均低于 Grand Seiko 自动验光仪（分别为 0.874 和 0.839）。Spot Vision Screener 中双眼条件下瞳孔大小的 ICC 值在观察者内为 0.871，在观察者间为 0.760，均低于 Grand Seiko 自动验光仪（分别为 0.967 和 0.943）。使用 Spot Vision Screener 获得的屈光值和瞳孔大小具有很高的重复性和再现性，与使用 Grand Seiko 自动验光仪获得的值相似。因此，作为一种自动化视力筛查仪，Spot Vision Screener 是一种可靠的便携式屈光仪和瞳孔计设备，可用于临床测量屈光不正。
