This study obtained information on 406 children from birth to age 3 with visual impairments at the point of entry into specialized early intervention programs in nine states. It found that the majority of the children were legally blind and had disabilities in addition to visual impairment. Cortical visual impairment, retinopathy of prematurity, and optic nerve hypoplasia were the three most prevalent eye conditions in the sample. Furthermore, about a six-month mean lag was found between the diagnosis of children's visual impairment and referral for services.
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