Purpose: The purpose of this controlled study was to determine the effectiveness of vision therapy for accommodative infacility in children. Methods: 10 children 9 to 13 years of age with symptomatic accommodative infacility were divided into a treatment group (n=6) and a contol group (n=4). The treatment group received 12 weeks of vision therapy while the control group received nothing. Results: The visual symptom assessed by COVD-QOL score for the treatment group showed both statistically and clinically significant reduction from 27.50${pm}$5.68 to 12.00${pm}$7.24 (p<0.01). Also, there were statistically and clinically significant improvement in the clinical measures of monocular accommodative facility of right eye (from 0.67${pm}$1.03 cpm to 15.42${pm}$4.85 cpm; p<0.001) and binocular accommodative facility (from 0.33${pm}$0.82 cpm to 13.92${pm}$3.58 cpm; p<0.001). In contrast, there were no significant improvement in symptoms and in the clinical measures of monocular and binocular accommodative facility for the control group (p>0.05). Conclusion: Vision therapy is an effective mode of treatment in eliminating symptoms and improving accommodative facility in children with accommodative infacility.