U. Ek et al., RELATION BETWEEN BLINDNESS DUE TO RETINOPATHY OF PREMATURITY AND AUTISTIC SPECTRUM DISORDERS - A POPULATION-BASED STUDY, Developmental Medicine and Child Neurology, 40(5), 1998, pp. 297-301
Children with blindness due to retinopathy of prematurity (ROP) - who
are at greatly increased risk of cerebral damage - have been noted to
have a high rate of autistic symptoms, but systematic controlled studi
es have been lacking. A controlled population-based study was performe
d; one group was blind due to ROP (N=27) and the other was congenitall
y blind due to hereditary retinal disease (N=14). Fifteen of the 27 ch
ildren with ROP had autistic disorder. All these children were mentall
y retarded and about one-third of them had cerebral palsy. In the comp
arison group, two of the 14 children had autistic disorder. It is conc
luded that there is a strong association between ROP and autistic diso
rder. The association is most probably mediated by brain damage and is
largely independent of the blindness per se.