Changing vergence function in persons with Parkinson's disease and convergence insufficiency. (April 2020)

• Record Type: Journal Article
• Authors: Machan, Carolyn M.; Chriqui, Estefania; Law, Caroline; Norman, Benjamin; Alhassan, Mosaad; Almeida, Quincy J.; Kergoat, Hélène; Irving, Elizabeth L.
• Is Part Of: Parkinsonism & related disorders. Volume 73(2020)
• Page Start: 41
• Page End: 43
• Publication Date: 2020-04
• Subjects: Convergence insufficiency -- Parkinson's disease -- Symptoms -- Vergence training; Parkinson's disease -- Periodicals; Movement disorders -- Periodicals; Movement Disorders -- Periodicals; Nerve Degeneration -- Periodicals; Nervous System Diseases -- Periodicals; Parkinson Disease -- Periodicals; Tremor -- Periodicals; Parkinson, Maladie de -- Périodiques; Parkinson's disease; 616.833
• DOI: 10.1016/j.parkreldis.2020.03.011
• Languages: English
• ISSNs: 1353-8020

Abstract

Abstract: Individuals with Parkinson's disease and convergence insufficiency were assigned vergence training. After two months, average positive fusional vergence increased and average near point of convergence decreased. Vergence can be improved with training in persons with Parkinson's disease who also have convergence insufficiency. Highlights: Convergence insufficiency (CI) causes visual symptoms and is more common in people with Parkinson's disease (PD). People with CI and PD were given two months of home-based vergence training. Near point of convergence decreased and positive fusional vergence increased in persons with PD who completed training. The data support further investigation of vergence training as therapy for CI in PD.