【摘 要】
：
早产儿视网膜病变(ROP)是尚未发育成熟的早产儿视网膜在各种因素影响下发生的一种视网膜新生血管形成和纤维异常增生的视网膜增生性病变,可导致视力下降、视野缺损甚至失明[1
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早产儿视网膜病变(ROP)是尚未发育成熟的早产儿视网膜在各种因素影响下发生的一种视网膜新生血管形成和纤维异常增生的视网膜增生性病变,可导致视力下降、视野缺损甚至失明[1].发达国家对ROP进行了深入和广泛的研究,使ROP发生率显著下降[2,3].目前我国ROP的筛查还处于探索阶段,对ROP的总体流行状况及发展趋势,尚未见系统性的研究报道.为此,我们对一组出生体重＜2000 g的早产儿和低体重儿ROP筛查阳性率的变化趋势及相关影响因素进行了分析.现将结果报道如下.
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