在未经纠正的高视度中,在持续的近距离任务中,适应和变反应的准确性和稳定性
Michael Ntodie1,2, Kathryn Saunders3, Julie-Anne Little3
1Department of Optometry and Vision Science, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana. michael.ntodie@ucc.edu.gh.
Scientific reports
|September 1, 2023
概括
患有超视障碍的儿童表现出类似的适应性,但在持续的近距离任务中视觉不稳定性增加. 这可能会对他们的视觉体验和阅读表现产生负面影响.
科学领域:
- 眼科医生 眼科 眼科
- 儿科光学测量 儿科光学测量
- 视觉科学 视觉科学 视觉科学
背景情况:
- 超视是儿童常见的折射误差.
- 适应性和融合功能对于近距离的双眼视觉清晰和舒适至关重要.
- 持续的近距离工作可以揭示微妙的视觉系统缺陷.
研究的目的:
- 为了比较在长时间的近距离任务中,高视障碍和没有高视障碍的儿童的适应性和合性功能的准确性和稳定性.
- 调查持续近视需求对未经纠正折射误差的儿科患者群体视觉表现的影响.
主要方法:
- 奇特的红外光反射被用来测量双眼适应和眼睛位置在92名儿童 (年龄为5-10岁) 和没有超视.
- 参与者执行了两个15分钟的近距离任务:在Kindle上阅读和在LCD屏幕上观看动画电影.
- 视力敏度,适应幅度和立体敏度也被评估.
主要成果:
- 折射组之间适应和变反应的大小没有显著差异.
- 观察到适应性反应的准确性和稳定性在任务之间存在显著的差异.
- 增加的适应性和结性不稳定性与总的适应性反应有关,特别是在超视群中.
- 未经纠正的超视的儿童表现出与视控制对象相似的适应能力,尽管需求更高.
结论:
- 虽然未被纠正的超视儿童可以适应足够的近距离任务,但他们表现出更大的不稳定性在他们的适应和结系统.
- 这些视觉不稳定可能会对未经纠正的视力偏差症儿童的整体视觉体验和功能表现产生负面影响.
- 需要进一步的研究来探索这些发现对视觉发育和学习的长期影响.
相关概念视频
01:16Focusing of Light in the Eye
2.9K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
2.9K
01:15Depth Perception and Spatial Vision
714
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
714
01:28Angle Closure Glaucoma: Treatment
560
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
560