Visual function at 35 and 40 weeks' postmenstrual age in low-risk preterm infants.

Francesca Gallini, Domenico Lepore, Fernando Molle, Eugenio Maria Mercuri, Daniela Ricci, Francesca Serrao, Mauro De Carlini, Francesco Cota, Maria Pia De Carolis, Costantino Romagnoli, Laura Cesarini, Diego Romeo, Michela Groppo, R Ratiglia, F Mosca, Francesco Guzzetta, F Cowan, La Ramenghi

Risultato della ricerca: Contributo in rivistaArticolo in rivista

39 Citazioni (Scopus)

Abstract

OBJECTIVES: The objectives of this study were to (1) assess visual function in low-risk preterm infants at 35 and 40 weeks' postmenstrual age, (2) compare preterm visual abilities at term-equivalent age with term-born infants, and (3) evaluate effects of preterm extrauterine life on early visual function. METHODS: Visual function was assessed by using a validated test battery at 35 and 40 weeks' postmenstrual age in 109 low-risk preterm infants who were born at <31 weeks' gestation. The preterm findings were compared with data from term-born infants collected by using the same test protocol. RESULTS: All preterm infants completed both assessments. The 35-week responses were generally less mature than those at 40 weeks. Preterm infants at both ages were significantly more mature than term-born infants for ocular movements and vertical and arc tracking and at 40 weeks for stripe discrimination. In contrast, tracking a colored stimulus, attention at distance, and stripe discrimination were more mature at term age (in both term-born and preterm infants) than at 35 weeks. CONCLUSIONS: Our findings provide data for visual function at 35 and 40 weeks' postmenstrual age in low-risk preterm infants. The results suggest that early extrauterine experience may accelerate the maturation of aspects of visual function related to ocular stability and tracking but does not seem to affect other aspects that may be more cortically mediated.
Lingua originaleEnglish
pagine (da-a)1193-1198
Numero di pagine6
RivistaPediatrics
Stato di pubblicazionePubblicato - 2008

Keywords

  • Visual function
  • low-risk preterm infants

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