Influence of Screen Exposure on Vergence Components from Childhood to Adolescence - Inserm - Institut national de la santé et de la recherche médicale Accéder directement au contenu
Article Dans Une Revue International Journal of Ophthalmology & Eye Science Année : 2016

Influence of Screen Exposure on Vergence Components from Childhood to Adolescence

Résumé

The goal of our study is to explore the impact of screen exposure on vergence components in children. Sixty-eight healthy children (aged from 5.4 to 16 years old) were studied. We recorded vergence components (near point of convergence, heterophoria at far and near distances, fusional amplitudes of convergence and divergence at far and near distances, AC/A ratio). We reported the time spent in front of screens at near and far distance per day. NPC value is 1.87 ± 1.05 cm. Phoria at far is-0.29 ± 0.21 pD. Phoria at near is-3.00 ± 0.45 pD. Fusional amplitudes are as follows: convergence at far is 18.72 ± 0.73 pD; convergence at near is 38.16 ± 0.98 pD; divergence at far is 4.76 ± 0.19 pD; divergence at near is 17.01 ± 0.33 pD. AC/A ratio is 2.35 ± 0.08. Amplitude of divergence and convergence at near distance decreased significantly with age, while other vergence components did not vary. The time spent in front of screens at near distance increased significantly with age. There is a significant correlation between the amplitudes of convergence and exposure time to screens (both at near distance). Our study, beside reporting precise normative vergence data in children, suggests that near distance activity could possibly allow older children to have better vergence accuracy at near distance and a smaller range of vergence amplitude as a possible consequence of visual training.
Fichier principal
Vignette du fichier
IJOES_Ajrezoetal2016.pdf (425.59 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-03149227 , version 1 (22-02-2021)

Identifiants

Citer

Layla Ajrezo, Sylvette Wiener-Vacher, Maria Pia Bucci, Emmanuel Bui-Quoc. Influence of Screen Exposure on Vergence Components from Childhood to Adolescence. International Journal of Ophthalmology & Eye Science, 2016, 4 (1), pp.170-177. ⟨10.19070/2332-290X-1500036⟩. ⟨hal-03149227⟩
38 Consultations
7 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More