Elizabeth L Irving1, Estefania Chriqui2,3, Caroline Law2,3, Marie-Jeanne Kergoat3,4, Bernard-Simon Leclerc3,5,6, Michel Panisset7, Ronald Postuma8, Hélène Kergoat2,3. 1. School of Optometry and Vision Science University of Waterloo Waterloo ON Canada. 2. School of Optometry University of Montréal Montréal QC Canada. 3. Research Center Montréal University Institute of Geriatrics Montréal QC Canada. 4. Faculty of Medicine University of Montréal Montréal QC Canada. 5. Department of Social and Preventive Medicine School of Public Health University of Montréal Montréal QC Canada. 6. "InterActions" Research Center Integrated University Health and Social Services Center North of the Island of Montréal Montréal QC Canada. 7. Department of Neurology Research Center - CHUM Montréal QC Canada. 8. Department of Neurology Montréal General Hospital (MGH) McGill University.
Abstract
BACKGROUND: We recently reported that convergence insufficiency (CI)-type visual symptomatology was more prevalent in participants with Parkinson's disease (PD), compared to controls. The objective of this work was to determine the prevalence of a confirmed clinical diagnosis of CI in PD, compared to controls. METHODS: Participants with (n = 80) and without (n = 80) PD were recruited and received an eye exam. Published criteria were used to arrive at a clinical diagnosis of CI. The Convergence Insufficiency Symptom Survey (CISS-15) questionnaire was administered to each participant, with a score of ≥21 being considered positive for CI symptomatology. Student t test, chi-square, or nonparametric tests at the 0.05 level were used for statistical significance. RESULTS: A total of 43.8% of participants with versus 16.3% without PD had a clinical diagnosis of CI (P ≤ 0.001). A total of 53.8% of participants with versus 18.8% without PD had scores on the CISS-15 of ≥21 (P ≤ 0.001). CONCLUSIONS: These results indicate that individuals with PD have a higher prevalence of CI and CI symptomatology than controls. These data provide evidence supporting the notion that treatment for symptomatic CI should be investigated in individuals with PD.
BACKGROUND: We recently reported that convergence insufficiency (CI)-type visual symptomatology was more prevalent in participants with Parkinson's disease (PD), compared to controls. The objective of this work was to determine the prevalence of a confirmed clinical diagnosis of CI in PD, compared to controls. METHODS: Participants with (n = 80) and without (n = 80) PD were recruited and received an eye exam. Published criteria were used to arrive at a clinical diagnosis of CI. The Convergence Insufficiency Symptom Survey (CISS-15) questionnaire was administered to each participant, with a score of ≥21 being considered positive for CI symptomatology. Student t test, chi-square, or nonparametric tests at the 0.05 level were used for statistical significance. RESULTS: A total of 43.8% of participants with versus 16.3% without PD had a clinical diagnosis of CI (P ≤ 0.001). A total of 53.8% of participants with versus 18.8% without PD had scores on the CISS-15 of ≥21 (P ≤ 0.001). CONCLUSIONS: These results indicate that individuals with PD have a higher prevalence of CI and CI symptomatology than controls. These data provide evidence supporting the notion that treatment for symptomatic CI should be investigated in individuals with PD.
Authors: K Ray Chaudhuri; Cristina Prieto-Jurcynska; Yogini Naidu; Tanya Mitra; Belen Frades-Payo; Susanne Tluk; Anne Ruessmann; Per Odin; Graeme Macphee; Fabrizio Stocchi; William Ondo; Kapil Sethi; Anthony H V Schapira; Juan Carlos Martinez Castrillo; Pablo Martinez-Martin Journal: Mov Disord Date: 2010-04-30 Impact factor: 10.338
Authors: Mitchell Scheiman; G Lynn Mitchell; Susan Cotter; Marjean Taylor Kulp; Jeffrey Cooper; Michael Rouse; Eric Borsting; Richard London; Janice Wensveen Journal: Optom Vis Sci Date: 2005-07 Impact factor: 1.973
Authors: Michael W Rouse; Eric J Borsting; G Lynn Mitchell; Mitchell Scheiman; Susan A Cotter; Jeffrey Cooper; Marjean T Kulp; Richard London; Janice Wensveen Journal: Ophthalmic Physiol Opt Date: 2004-09 Impact factor: 3.117
Authors: Iris van der Lijn; Gera A de Haan; Famke Huizinga; Fleur E van der Feen; A Wijnand F Rutgers; Catherina Stellingwerf; Teus van Laar; Joost Heutink Journal: J Parkinsons Dis Date: 2022 Impact factor: 5.520