This proposal is for University of Alabama at Birmingham School of Optometry (UABSO) to serve as one of 9 clinical centers in the Convergence Insufficiency Treatment Trial (CITT). The CITT is a multi-center clinical trial designed to compare the efficacy of two commonly used treatment approaches for patients with ? convergence insufficiency (Cl). In the proposed study, 249 patients between the ages of 9 and 30 years will be randomly assigned to: 1) home-based pencil push-up treatment, 2) office-based Vision Therapy Orthoptics, or 3) office-based placebo Vision Therapy/Orthoptics. Measurements of the signs and symptoms of CI will be made at baseline, and by masked examiners even/4 weeks during the 12-week treatment phase, and after 6 and 12-months of follow-up. The primary outcome variable will be the score on the Convergence Insufficiency Symptom Survey. Secondary measures will include the near point of convergence and positive fusional vergence at near. Our objective at this Clinical Center will be to randomize at least 30 patients over an eighteen month period of time. This application documents the ability of UABSO to recruit at least 30 patients within 18 months, and to retain each patient for one year after completion of treatment. Documentation is also provided that UABSO has the personnel, equipment, and facilities to conduct the study in accordance with the C6TT Manual of ? Procedures (MOP). Complete details of the CITT rationale, design, and methods are contained in the MOP, which is submitted separately with the Study Chair and Coordinating Center applications, in addition to UABSO, there will be 8 other optometric/ophthalmological clinical centers with the Study Chair in Philadelphia and the Coordinating Center at The Ohio State University Optometry Coordinating Center. ? ?
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| Borsting, Eric; Mitchell, G Lynn; Kulp, Marjean Taylor et al. (2012) Improvement in academic behaviors after successful treatment of convergence insufficiency. Optom Vis Sci 89:12-8 |
| Barnhardt, Carmen; Cotter, Susan A; Mitchell, G Lynn et al. (2012) Symptoms in children with convergence insufficiency: before and after treatment. Optom Vis Sci 89:1512-20 |
| Kulp, Marjean; Mitchell, G Lynn; Borsting, Eric et al. (2009) Effectiveness of placebo therapy for maintaining masking in a clinical trial of vergence/accommodative therapy. Invest Ophthalmol Vis Sci 50:2560-6 |
| Rouse, Michael; Borsting, Eric; Mitchell, G Lynn et al. (2009) Academic behaviors in children with convergence insufficiency with and without parent-reported ADHD. Optom Vis Sci 86:1169-77 |
| Rouse, Michael; Borsting, Eric; Mitchell, G Lynn et al. (2009) Validity of the convergence insufficiency symptom survey: a confirmatory study. Optom Vis Sci 86:357-63 |
| Convergence Insufficiency Treatment Trial (CITT) Study Group (2008) The convergence insufficiency treatment trial: design, methods, and baseline data. Ophthalmic Epidemiol 15:24-36 |
| Convergence Insufficiency Treatment Trial Study Group (2008) Randomized clinical trial of treatments for symptomatic convergence insufficiency in children. Arch Ophthalmol 126:1336-49 |
