June 13, 2005
Children Born Prematurely at Risk for Poorer Vision
CHICAGO "“ Children who were born prematurely are more likely to have visual problems at 10 years of age than children who were born at full term, according to a study in the June issue of Archives of Ophthalmology, one of the JAMA/Archives journals.
Eye and neurological problems are common in premature infants, according to background information in the article, but little is known about the effects of prematurity on visual acuity, the sharpness or clarity of vision. The current study evaluated both prematurely born and full-term children at the age of 10 years to determine the effects on visual acuity of prematurity alone, of retinopathy of prematurity (ROP, a disorder of the blood vessels of the retina that is common in premature babies) and of cryotherapy (the standard treatment for ROP).
Prematurely born children had reduced distance and near visual acuities compared with full-term children, even when children who had retinopathy and neurological disorders were excluded, the researchers report. Children who had been treated with cryotherapy had the highest risk of reduced visual acuity. Two percent of the preterm children were visually impaired by the World Health Organization criteria and 5.3 percent had a visual acuity below 20/60 in either eye.
"Although we found an overall good visual outcome in the prematurely born cohort, the risk of reduced visual acuity was greater than in full-term children," the authors conclude. "Children who had been treated with cryotherapy had the highest risk, but prematurity per se was also associated with reduced visual acuity."
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