PURPOSE: To determine age norms for grating visual acuity and interocular acuity differences measured by the sweep-visually evoked potentials (VEP) technique in the first three years of life. METHODS: Monocular grating visual acuity was measured using the sweep-VEP in 67 healthy normal infants and children in the first 36 months of life. RESULTS: Sweep-VEP grating acuity ranged from 0.80 logMAR (20/125 Snellen equivalent) in the first month of life to 0.06 logMAR (20/20 Snellen equivalent) at 36 months of age. Lower normal limits (95th percentile limit) ranged from 0.95 logMAR (20/180) to 0.12 logMAR (20/25) with a progression of approximately 3 octaves in the first 36 months of age. The largest acceptable interocular acuity difference for clinical purposes was 0.10 logMAR. CONCLUSIONS: Age norms for grating acuity along with interocular acuity differences were determined using the sweep-VEP technique. These norms should be incorporated in clinical practice for precise diagnosis of visual status in infants and preverbal children.
PURPOSE: To determine age norms for grating visual acuity and interocular acuity differences measured by the sweep-visually evoked potentials (VEP) technique in the first three years of life. METHODS: Monocular grating visual acuity was measured using the sweep-VEP in 67 healthy normal infants and children in the first 36 months of life. RESULTS: Sweep-VEP grating acuity ranged from 0.80 logMAR (20/125 Snellen equivalent) in the first month of life to 0.06 logMAR (20/20 Snellen equivalent) at 36 months of age. Lower normal limits (95th percentile limit) ranged from 0.95 logMAR (20/180) to 0.12 logMAR (20/25) with a progression of approximately 3 octaves in the first 36 months of age. The largest acceptable interocular acuity difference for clinical purposes was 0.10 logMAR. CONCLUSIONS: Age norms for grating acuity along with interocular acuity differences were determined using the sweep-VEP technique. These norms should be incorporated in clinical practice for precise diagnosis of visual status in infants and preverbal children.
Authors: Patrícia de Freitas Dotto; Adriana Berezovsky; Andrea Maria Cappellano; Nasjla Saba da Silva; Paula Yuri Sacai; Frederico Adolfo B Silva; Arthur Gustavo Fernandes; Daniel Martins Rocha; Solange Rios Salomão Journal: Doc Ophthalmol Date: 2018-05-15 Impact factor: 2.379
Authors: Ruth Hamilton; Michael Bach; Sven P Heinrich; Michael B Hoffmann; J Vernon Odom; Daphne L McCulloch; Dorothy A Thompson Journal: Doc Ophthalmol Date: 2020-06-02 Impact factor: 2.379
Authors: Daniela Martini; Augusto Innocenti; Chiara Cosentino; Giorgio Bedogni; Donato Angelino; Beatrice Biasini; Ivana Zavaroni; Marco Ventura; Daniela Galli; Prisco Mirandola; Marco Vitale; Alessandra Dei Cas; Riccardo C Bonadonna; Giovanni Passeri; Carlo Pruneti; Daniele Del Rio Journal: Nutrients Date: 2018-02-14 Impact factor: 5.717
Authors: Anne C Wheeler; Camila V Ventura; Ty Ridenour; Danielle Toth; Lucélia Lima Nobrega; Lana Claudia Silva de Souza Dantas; Camilla Rocha; Donald B Bailey; Liana O Ventura Journal: PLoS One Date: 2018-07-26 Impact factor: 3.240