From 1984 until 1990, Ms. Karen Pollack was a vision therapist at Salus University. Prior to that, she worked in a private practice as lead therapist. From 1990 until present, she has been the coordinator for numerous studies investigating the treatment and efficacy of convergence insufficiency and therapy. Ms. Pollack has also been the coordinator for two myopia studies. Dr. Mitchell Scheiman and Ms. Pollack have introduced Vision Therapy to many practices throughout the United States.