PURPOSE

To assess test-retest repeatability of the accommodative response (AR) in children with and without amblyopia and adults using the Grand Seiko autorefractor.

DESIGN

Prospective reliability assessment.

METHODS

Test-retest of accommodation was obtained while participants viewed 20/150 sized letters at 33 cm using the Grand Seiko autorefractor in children 5 to <11 years with amblyopia (n=24) and without amblyopia (n=36), and adults 18 to <35 years (n=34). Bland-Altman 95% limits of agreement (LOA) and intraclass correlation coefficients (ICCs) were used to assess repeatability and reliability. The AR between the fellow and amblyopic eyes of children with amblyopia and eye 1 and eye 2 of the visually normal participants was assessed using group comparisons.

RESULTS

The 95% LOA of the AR was greatest in the amblyopic eyes (–1.25 diopters [D], 1.62 D) of children with amblyopia. The 95% LOA were similar between the fellow eyes (–0.88 D, 0.74 D) of children with amblyopia and both eyes of the children without amblyopia (eye 1: –0.68 D, 0.71 D; eye 2: –0.59 D, 0.70 D) and the adults (eye 1: 95% LOA = –0.49 D, 0.45 D; eye 2: LOA = –0.66 D, 0.67 D). ICCs revealed the Grand Seiko autorefractor as a reliable instrument for measuring AR.

CONCLUSIONS

The Grand Seiko autorefractor was more repeatable and reliable when measuring the AR in children and adults without amblyopia than in the amblyopic eye in children with amblyopia. It is recommended that multiple measures of the AR be obtained in amblyopic eyes to improve the precision of measures.

中文翻译：

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Grand Seiko 自动验光仪在弱视和非弱视儿童及成人中测量的调节反应的重复性

目的

使用 Grand Seiko 自动验光仪评估患有和不患有弱视的儿童以及成人的调节反应 (AR) 的重测重复性。

设计

前瞻性可靠性评估。

方法

当参与者使用 Grand Seiko 自动验光仪在 5 至 <11 岁弱视儿童 (n=24) 和无弱视儿童 (n=36) 以及 18 至<35 岁 (n=34)。Bland-Altman 95% 一致性限度 (LOA) 和组内相关系数 (ICC) 用于评估可重复性和可靠性。使用组比较评估弱视儿童的同侧眼和弱视眼以及视觉正常参与者的眼睛 1 和眼睛 2 之间的 AR。

结果

AR 的 95% LOA 在弱视儿童的弱视眼中最大（–1.25 屈光度 [D]，1.62 D）。弱视儿童的对侧眼（–0.88 D、0.74 D）与非弱视儿童的双眼（第 1 眼：–0.68 D、0.71 D；第 2 眼：–0.59 D、0.70 D）的 95% LOA 相似) 和成人（眼睛 1：95% LOA = –0.49 D，0.45 D；眼睛 2：LOA = –0.66 D，0.67 D）。ICC 透露 Grand Seiko 自动验光仪是测量 AR 的可靠仪器。

结论

Grand Seiko 自动验光仪在测量非弱视儿童和成人的 AR 时比测量弱视儿童的弱视眼时更可重复和可靠。建议在弱视眼中获得 AR 的多个测量值，以提高测量的精度。