“…To date, only few studies investigated the association between refractive error and ADHD with mixed results (DeCarlo et al, 2014; DeCarlo, Swanson, McGwin, Visscher, & Owsley, 2016; Granet, Gomi, Ventura, & Miller-Scholte, 2005; Grönlund, Aring, Landgren, & Hellström, 2007; Mezer & Wygnanski-Jaffe, 2012). Although the majority observed that the prevalence of refractive error was higher in children and adolescents with ADHD compared with healthy controls (DeCarlo et al, 2014; DeCarlo et al, 2016; Granet et al, 2005; Grönlund et al, 2007; Mezer & Wygnanski-Jaffe, 2012), another study found no association (Fabian et al, 2013). Current research analyzing the association of refractive error and ADHD focuses only on the specific relationship of insufficiency of convergence or accommodation and ADHD, noting a greater occurrence of these both forms of refractive error in children with ADHD (Bartuccio, Taub, & Kieser, 2008; Borsting, Rouse, & Chu, 2005; Granet et al, 2005; Rouse et al, 2009).…”