Abstract

Development of binocular visual acuity was examined using the one-hole grating acuity cards in preterm infants and full-term newborn infants. To investigate the effect of visual stimulation after birth on visual development, 205 newborn infants were divided into two groups, 70 preterm infants and 135 full-term infants.There was no statistically significant difference in binocular visual acuity at 40 weeks of conceptional ages between the groups. The visual acuity in both preterm and full-term infants had a tendency to improve at over 40 weeks of conceptional ages.These results suggest that visual stimulation before 40 weeks has little effect on the development of the visual acuity of preterm infants.

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