Do the results of office-based vision therapy last after the patient discontinues the treatment?
In the large-scale, randomized clinical trial on 221 children with convergence insufficiency which was published in 2008 we found that office-based vision therapy was more effective than home-based treatments after 12 weeks of treatment. We recently presented the long-term data from this study. The study will be published in Optometry and Vision Science in July 2009. We followed all children who were no longer symptomatic at 12 weeks. They were re-examined at 6 and 12-months after completion of their treatment. The results show that about 90% of the children in the office-based vision therapy group remained asymptomatic one year later. Most children who were in the home-based groups also remained asymptomatic, although not as high a percentage as in the office-based group.
