Abstract：
OBJECTIVE: Autostereoscopic displays have become increasingly common, but their impact on ocular dimensions remains unknown. We sought to identify changes in the crystalline lens dimensions induced by autostereoscopic three-dimensional (3D) viewing.
METHODS: Forty young adults (age: 22.6 ± 2.0 years, male/female: 15/25) were consecutively enrolled and randomly divided into two groups (3D and two-dimensional [2D] viewing groups) to watch a 30-min movie clip displayed in 3D or 2D mode on a tablet computer. The lens thickness (LT), diameter, curvature, decentration and tilt were measured with anterior segment optical coherence tomography under both non-accommodating (static) and accommodating conditions.
RESULTS: In the static condition, the LT decreased by 0.03 ± 0.03 mm (p < 0.001) and the anterior radius of curvature (ARC) increased by 0.49 ± 0.59 mm (p = 0.001) post-3D viewing. In contrast, following 2D viewing, the ARC decreased by 0.23 ± 0.25 mm (p = 0.001). Additionally, the increase in the steep ARC post-3D viewing was greater in high-myopic eyes than low to moderate myopic eyes (p = 0.04). When comparing the accommodative with the static (non-accommodative) condition, for 3D viewing the lens decentration decreased (-0.03 ± 0.05 mm, p = 0.02); while for 2D viewing, the posterior curvature radius (-0.14 ± 0.20 mm, p = 0.006) and diameter (-0.13 ± 0.20 mm, p = 0.01) decreased.
CONCLUSIONS: Viewing with the autostereoscopic 3D tablet could temporally decrease the thickness and curvature of the lens under non-accommodating conditions. However, its long-term effect requires further exploration.
METHODS: Forty young adults (age: 22.6 ± 2.0 years, male/female: 15/25) were consecutively enrolled and randomly divided into two groups (3D and two-dimensional [2D] viewing groups) to watch a 30-min movie clip displayed in 3D or 2D mode on a tablet computer. The lens thickness (LT), diameter, curvature, decentration and tilt were measured with anterior segment optical coherence tomography under both non-accommodating (static) and accommodating conditions.
RESULTS: In the static condition, the LT decreased by 0.03 ± 0.03 mm (p < 0.001) and the anterior radius of curvature (ARC) increased by 0.49 ± 0.59 mm (p = 0.001) post-3D viewing. In contrast, following 2D viewing, the ARC decreased by 0.23 ± 0.25 mm (p = 0.001). Additionally, the increase in the steep ARC post-3D viewing was greater in high-myopic eyes than low to moderate myopic eyes (p = 0.04). When comparing the accommodative with the static (non-accommodative) condition, for 3D viewing the lens decentration decreased (-0.03 ± 0.05 mm, p = 0.02); while for 2D viewing, the posterior curvature radius (-0.14 ± 0.20 mm, p = 0.006) and diameter (-0.13 ± 0.20 mm, p = 0.01) decreased.
CONCLUSIONS: Viewing with the autostereoscopic 3D tablet could temporally decrease the thickness and curvature of the lens under non-accommodating conditions. However, its long-term effect requires further exploration.
摘要：
目的：自动立体显示越来越普遍，但它们对眼睛尺寸的影响仍然未知。我们试图识别由自动立体三维（3D）观看引起的晶状体尺寸的变化。
方法：40名年轻人（年龄：22.6±2.0岁，男/女：15/25）连续入组，随机分为两组（3D和二维[2D]观看组），以观看平板电脑上以3D或2D模式显示的30分钟电影剪辑。透镜厚度（LT），直径,曲率,在非调节（静态）和调节条件下，用眼前节光学相干断层扫描测量偏心和倾斜。
结果：在静态条件下，3D观察后，LT减少了0.03±0.03mm（p<0.001），前曲率半径（ARC）增加了0.49±0.59mm（p=0.001）。相比之下,在2D查看之后，ARC减少0.23±0.25mm(p=0.001)。此外,高度近视眼的3D后急剧ARC观察的增加大于低度至中度近视眼(p=0.04).当比较调节和静态(非调节)条件时，对于3D观看，透镜偏心减小(-0.03±0.05mm，p=0.02）；而对于2D观看，后曲率半径(-0.14±0.20mm,p=0.006）和直径（-0.13±0.20mm，p=0.01）下降。
结论：在非调节条件下，用自动立体3D平板观看可以暂时降低晶状体的厚度和曲率。然而,其长期效果需要进一步探索。
方法：40名年轻人（年龄：22.6±2.0岁，男/女：15/25）连续入组，随机分为两组（3D和二维[2D]观看组），以观看平板电脑上以3D或2D模式显示的30分钟电影剪辑。透镜厚度（LT），直径,曲率,在非调节（静态）和调节条件下，用眼前节光学相干断层扫描测量偏心和倾斜。
结果：在静态条件下，3D观察后，LT减少了0.03±0.03mm（p<0.001），前曲率半径（ARC）增加了0.49±0.59mm（p=0.001）。相比之下,在2D查看之后，ARC减少0.23±0.25mm(p=0.001)。此外,高度近视眼的3D后急剧ARC观察的增加大于低度至中度近视眼(p=0.04).当比较调节和静态(非调节)条件时，对于3D观看，透镜偏心减小(-0.03±0.05mm，p=0.02）；而对于2D观看，后曲率半径(-0.14±0.20mm,p=0.006）和直径（-0.13±0.20mm，p=0.01）下降。
结论：在非调节条件下，用自动立体3D平板观看可以暂时降低晶状体的厚度和曲率。然而,其长期效果需要进一步探索。
