Open AccessThe Functional Change of Accommodation and Convergence in the Mid-Forties by Using Smartphone
Author(s) -
Ki-Il Kwon,
Hyun Jin Kim,
Mijung Park,
So Ra Kim
Publication year - 2016
Publication title -
han'gug an'gwang haghoeji
Language(s) - English
Resource type - Journals
ISSN - 1226-5012
DOI - 10.14479/jkoos.2016.21.2.127
Subject(s) - presbyopia , vergence (optics) , accommodation , heterophoria , optometry , monocular , medicine , ophthalmology , audiology , psychology , strabismus , optics , physics , neuroscience