The examination of visual acuity in preterm and full-term infants

Abstract

Event Abstract Back to Event The examination of visual acuity in preterm and full-term infants H J. Kiss1, Barath E. Miko1, K. Markó1, S. Sevinc1, I. Kovacs2, B. Torok3 and Gábor Jandó1* 1 Institute of Physiology,University of Pécs Medical School, Hungary 2 Department of Cognitive Science, University of Technology and Economics, Hungary 3 Department of Ophthalmology , Kantonsspital St. Gallen, Switzerland Pattern reversal evoked visual potentials (PR-VEPs) is a method to study the visual development (e.g. visual acuity) in infants. Recent research showed a rapid decrease in PR-VEP latencies and an increase in visual acuity during the early postnatal period. The objective of the present study was to follow up the age-related changes of visual acuity within normal preterm and full-term infant population. Binocular checkerboard PR-VEPs were evoked by five different check sizes (120’ down to 7.5’ in octave steps) once in every 1-4 weeks in 62 pre- and full-term infants between 1 and 10 months of postnatal age. We determined the age of the first significant response for each check size and the P100 latencies for each size and for each age, respectively. We compared these results within the two groups as a function of postmenstrual age (PMA). The VEPs were assessed by the T2circ statistic. The P100 latencies decreased rapidly from the 40th to 50th PMA-weeks. The onset ages of significant VEP responses to smaller check sizes (30’, 15’) were 46th and 52nd PMA-weeks, respectively. The first significant VEP response to the smallest (7.5’) check size could be recorded at around half a year of age. Adult-like responses could not be recorded within the 10 month of age for the smallest check size. No significant difference was found in the development of visual acuity between the preterm and full-term infants. In conclusion, prematurity has no influence on the development of visual acuity-related cortical PR-VEP responses. Conference: 12th Meeting of the Hungarian Neuroscience Society, Budapest, Hungary, 22 Jan - 24 Jan, 2009. Presentation Type: Poster Presentation Topic: Behavioural neuroscience Citation: Kiss HJ, Miko BE, Markó K, Sevinc S, Kovacs I, Torok B and Jandó G (2009). The examination of visual acuity in preterm and full-term infants. Front. Syst. Neurosci. Conference Abstract: 12th Meeting of the Hungarian Neuroscience Society. doi: 10.3389/conf.neuro.01.2009.04.096 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 03 Mar 2009; Published Online: 03 Mar 2009. * Correspondence: Gábor Jandó, Institute of Physiology,University of Pécs Medical School, Pecs, Hungary, gabor.jando@aok.pte.hu Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers H J Kiss Barath E Miko K. Markó S. Sevinc I. Kovacs B. Torok Gábor Jandó Google H J Kiss Barath E Miko K. Markó S. Sevinc I. Kovacs B. Torok Gábor Jandó Google Scholar H J Kiss Barath E Miko K. Markó S. Sevinc I. Kovacs B. Torok Gábor Jandó PubMed H J Kiss Barath E Miko K. Markó S. Sevinc I. Kovacs B. Torok Gábor Jandó Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.