Table 2 Characteristics of included studies.

From: Oculomotor deficits in attention deficit hyperactivity disorder: a systematic review and meta-analysis

Study article

Study design

Age range in years for cases and controls (y)

Number of children - cases & control

Oculomotor task

Castellanos et al., 2000

Case- Control

ADHD: 6.9 y–10.7 y Controls: 7.9 y –11.3 y

ADHD - 32 Controls- 20

Smooth pursuit, Memory guided saccade

Gould et al., 2001

Case- Control

ADHD and Controls: 7 y–12 y

ADHD - 53 Controls- 44

Fixation task

Mostofsky et al., 2001

Case- Control

ADHD: 7.1y–16.1 y Controls: 7.2y–17.9 y

ADHD - 19 Controls- 25

Memory guided saccade, antisaccade

Klein et al., 2003

Case- Control

ADHD and Controls: 7 y–15 y

ADHD and Controls- 46

Prosaccade, antisaccade

Hanisch et al., 2006

Case- Control

ADHD: 10.7y–13.7 y Controls: 10.7y–12.9 y

ADHD and Controls- 22

Prosaccades, antisaccade, fixations

Van Der Stigchel et al., 2007

Case- Control

ADHD and Controls: 7 y–14 y

ADHD - 22 Controls- 20

Memory guided saccade

Rommelse et al., 2008

Case- Control

ADHD and Controls: 7 y–14 y

ADHD - 22 Controls- 20

Anticipatory and Intrusive saccade

Loe et al., 2009

Case– Control

ADHD and Control: 8 y–13 y

ADHD - 26 Control - 33

Visually guided saccade, antisaccade

Mahone et al., 2009

Case– Control

ADHD and Controls: 8 y–12 y

ADHD and Controls- 60

Memory guided, visually guided saccade & antisaccade

Fernandez-Ruiz et al., 2019

Case– Control

ADHD: 8 y–17 y Controls: 9 y–17 y

ADHD - 22 Controls- 20

Antisaccade

Molina et al., 2020

Case– Control

ADHD: 7.1 y–11.5 y Controls: 6.8 y –11.8 y

ADHD - 21 Controls- 22

Fixations

Huang & Chan, 2020

Case– Control

ADHD: 8 y–9.6 y Controls: 8.8 y–9.1 y

ADHD and Controls- 12

Visually guided saccade, antisaccade