Paediatric Neurology Unit, Catholic University, Rome, Italy.
J Pediatr. 2010 Apr;156(4):550-5. doi: 10.1016/j.jpeds.2009.10.042. Epub 2010 Jan 13.
To assess visual function in low-risk preterm infants at 3, 5, and 12 months corrected age to determine whether the maturation of visual function in the first year is similar to that reported in term-born infants.
Seventy-five low-risk infants (25.0-30.9 weeks gestation) underwent ophthalmological examinations and a battery of tests (fix and follow, visual fields, acuity, attention at distance, and fixation shift) designed to assess various aspects of visual function at 3, 5, and 12 months corrected age.
The results were comparable with normative data from term-born infants in all tests but fixation shift, suggesting that maturation of most aspects of visual function is not significantly affected by preterm birth. In contrast, >25% of preterm infants failed the fixation shift test at 3 months, with a higher percentage of failing at 5 and 12 months.
There is a specific profile of early visual behavior in low-risk preterm infants, with a high percentage of infants failing a test that specifically assesses visual attention and provides a measure of cortical processing.
评估低危早产儿在矫正后 3、5 和 12 个月时的视觉功能，以确定第一年视觉功能的成熟度是否与足月出生婴儿的报告相似。
75 名低危早产儿（25.0-30.9 周妊娠）接受了眼科检查和一系列测试（注视和跟随、视野、视力、远距离注意力和注视转移），旨在评估矫正后 3、5 和 12 个月时视觉功能的各个方面。
除了注视转移测试外，所有测试的结果均与足月出生婴儿的正常数据相当，这表明视觉功能的大多数方面的成熟度不受早产的显著影响。相比之下，3 个月时有>25%的早产儿未通过注视转移测试，5 个月和 12 个月时的失败比例更高。
低危早产儿存在特定的早期视觉行为模式，有很大比例的婴儿未通过专门评估视觉注意力并提供皮质处理测量的测试。
