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Type: Artigo de periódico
Title: The Lea Grating Test In Assessing Detection Grating Acuity In Normal Infants Less Than 4 Months Of Age
Author: Martini G.
Netto A.A.
Morcillo A.M.
Gagliardo H.G.R.G.
De Oliveira D.F.
Abstract: Purpose To assess binocular detection grating acuity using the LEA GRATINGS test to establish age-related norms in healthy infants during their first 3 months of life. Method In this prospective, longitudinal study of healthy infants with clear red reflex at birth, responses to gratings were measured at 1, 2, and 3 months of age using LEA gratings at a distance of 28 cm. The results were recorded as detection grating acuity values, which were arranged in frequency tables and converted to a one-octave scale for statistical analysis. For the repeated measurements, analysis of variance (ANOVA) was used to compare the detection grating acuity results between ages.Results A total of 133 infants were included. The binocular responses to gratings showed development toward higher mean values and spatial frequencies, ranging from 0.55 ± 0.70 cycles per degree (cpd), or 1.74 ± 0.21 logMAR, in month 1 to 3.11 ± 0.54 cpd, or 0.98 ± 0.16 logMAR, in month 3. Repeated ANOVA indicated differences among grating acuity values in the three age groups.Conclusions The LEA GRATINGS test allowed assessment of detection grating acuity and its development in a cohort of healthy infants during their first 3 months of life. © 2014 American Association for Pediatric Ophthalmology and Strabismus.
Editor: Mosby Inc.
Rights: fechado
Identifier DOI: 10.1016/j.jaapos.2014.08.006
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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