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美国每年有5.5万早产儿属视网膜病高危患儿,其中约1000人因视网膜病而发生严重视力障碍或失明。 有人报道,约80％早产儿有轻度视网膜病(一般不影响视力),10％的人发生足以导致视网膜脱离的重症视网膜病,仅10％早产儿完全无此病变。胎龄越小,患病的危险越大。胎龄小于或等于28周和出生体重低于或等于1500克的早产儿,其因各种眼病需接受防盲治疗的机率为35％。约10％极低体重早产儿患高度近视,须终生配戴高度近视眼镜。
In the United States, 55,000 preterm infants each year are at high risk of retinopathy. About 1,000 of these people develop severe visual impairment or blindness due to retinopathy. It has been reported that about 80% of preterm infants have mild retinopathy (usually without affecting vision), 10% develop severe retinopathy enough to cause retinal detachment, and 10% of premature infants have no such pathology. The smaller the gestational age, the greater the risk of illness. Premature babies with gestational age less than or equal to 28 weeks and birth weight less than or equal to 1500 grams have a 35% chance of receiving anti-blind treatment for various eye conditions. About 10% of very low birth weight preterm children with high myopia should wear a high degree of life-long myopia glasses.