Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Comparison of Three Vision Therapy Approaches for Convergence Insufficiency
Brief Summary: We compared the effectiveness of three active vision therapy approaches for convergence insufficiency (CI). Patients with eligible criteria and symptomatic CI were included in a prospective study and randomly allocated into three groups. In the home-based vision orthoptic therapy (HBVOT) group, patients were trained to do the pencil push-ups procedure 15 minutes per day, five days a week. In the office-based vision orthoptic therapy (OBVOT) group, 60 minutes of orthoptic therapy using a major amblyoscope twice weekly with additional home orthoptic therapy was prescribed. For the augmented office-based vision orthoptic therapy (AOBVOT) group, orthoptic exercises using three diopter over-minus lenses and a base out prism, in addition to major amblyoscope and additional home reinforcement was prescribed in the same period of time.


Options:
A: Intervention Type: PROCEDURE; Name: Base-in prism glasses for reading; Assigned to Arm(s): N/A | Intervention Type: PROCEDURE; Name: Placebo reading glasses; Assigned to Arm(s): N/A
B: Intervention Type: BEHAVIORAL; Name: Home-based Pencil Push-Up Therapy; Assigned to Arm(s): N/A | Intervention Type: BEHAVIORAL; Name: Home-based Pencil Push-ups with Computer Vision Therapy/Orthoptics; Assigned to Arm(s): N/A | Intervention Type: BEHAVIORAL; Name: Office-based Vision Therapy/Orthoptics; Assigned to Arm(s): N/A | Intervention Type: BEHAVIORAL; Name: Placebo Office-based Vision Therapy/Orthoptics; Assigned to Arm(s): N/A
C: Arm Label: home-based vision orthoptic therapy (HBVOT) group; Type: ACTIVE_COMPARATOR; Interventions: Procedure: trained to do the pencil push-ups procedure | Arm Label: office-based vision orthoptic therapy (OBVOT) group; Type: ACTIVE_COMPARATOR; Interventions: Procedure: using a major amblyoscope twice weekly with additional home orthoptic therapy | Arm Label: augmented office-based vision orthoptic therapy (AOBVOT) group; Type: ACTIVE_COMPARATOR; Interventions: Procedure: using three diopter over-minus lenses and a base out prism | Intervention Type: PROCEDURE; Name: trained to do the pencil push-ups procedure; Assigned to Arm(s): home-based vision orthoptic therapy (HBVOT) group | Intervention Type: PROCEDURE; Name: using a major amblyoscope twice weekly with additional home orthoptic therapy; Assigned to Arm(s): office-based vision orthoptic therapy (OBVOT) group | Intervention Type: PROCEDURE; Name: using three diopter over-minus lenses and a base out prism; Assigned to Arm(s): augmented office-based vision orthoptic therapy (AOBVOT) group
D: Arm Label: Computer-based therapy (CBT); Type: ACTIVE_COMPARATOR; Interventions: Other: Active home-based computer vergence/accommodative therapy, Procedure: Placebo yoked prism flippers | Arm Label: Near target push-up (NTP); Type: ACTIVE_COMPARATOR; Interventions: Procedure: Near target push-ups, Other: Placebo home-based computer vergence/accommodative therapy | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Other: Placebo home-based computer vergence/accommodative therapy, Procedure: Placebo yoked prism flippers | Intervention Type: OTHER; Name: Active home-based computer vergence/accommodative therapy; Assigned to Arm(s): Computer-based therapy (CBT) | Intervention Type: PROCEDURE; Name: Near target push-ups; Assigned to Arm(s): Near target push-up (NTP) | Intervention Type: OTHER; Name: Placebo home-based computer vergence/accommodative therapy; Assigned to Arm(s): Near target push-up (NTP), Placebo | Intervention Type: PROCEDURE; Name: Placebo yoked prism flippers; Assigned to Arm(s): Computer-based therapy (CBT), Placebo

Answer: C