Table 5. Changes of scores reported by parents answering the K-ARS questionnaire after vision therapy for children having symptomatic ADHD and CI.

Groups	Scores of symptomatic ADHD by K-ARS
	Before VT	After VT
Control group (8)	25.88±1.97	23.38±2.23
VT group (8)	23.25±1.49	17.13±2.84*

Data are expressed as mean±SD. *p<0.05: significantly different in the same group according to ANCOVA. The number of subjects is in parentheses. VT, vision therapy; ADHD, attention deficit hyperactivity disorder; K-ARS, Korea-ADHD Rating Scale