[关于婴儿和幼儿视觉发育的前性队列研究]
1Department of Pediatric Ophthalmology, Peking University Children's Vision Institute, Peking University First Hospital, Beijing 100034, China.
[Zhonghua yan ke za zhi] Chinese journal of ophthalmology
|August 8, 2023
概括
这项研究追踪了1496名婴儿的早期视觉发育. 视力敏度随着年龄的增长而显著改善,在9个月之前显示出快速增长,然后减缓,然后在18个月内恢复快速增长.
科学领域:
- 眼科医生 眼科 眼科
- 发育儿科 发育儿科
- 公共卫生 公共卫生
背景情况:
- 早期的视觉发育对于认知和运动技能的获得至关重要.
- 了解婴儿和幼儿的典型视觉发育轨迹对于识别潜在的延迟或损伤至关重要.
研究的目的:
- 分析婴儿和幼儿早期视觉发育的趋势和特征.
- 将中国人群的视觉发展与现有文献进行比较.
主要方法:
- 一项前性队列研究,涉及2008-2013年间出生的1496名婴儿.
- 视觉敏度使用Teller Acuity Card II (TAC II) 和Lea Symbols图表在42天,9个月,18个月和3岁时进行评估.
- 双眼和单眼视觉敏度都在不同的时间点测量.
主要成果:
- 双筒视觉敏度从42天到18个月 (P<0.001) 呈现出统计学上显著的改善.
- 视力敏度在42天到9个月之间大幅增加,在9-18个月之间放缓,并再次加速3年.
- 在9个月时,68.7%的儿童的视力敏度≥6.5周期/度 (cpd),在18个月时增加到92.7%.
结论:
- 婴儿和幼儿的视力敏度随着年龄的增长逐渐改善,直到3岁.
- 视觉发育的特点在9个月前是快速进展,然后在18个月后减速和随后加速.
- 在这个队列中观察到的视力敏度高于以前在其他中国人群中报告的.
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