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Prevalence of Convergence Insufficiency in Parkinson's Disease.


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.

SUBMITTER: Irving EL 

PROVIDER: S-EPMC6174402 | biostudies-literature | 2017 May-Jun

REPOSITORIES: biostudies-literature

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Publications

Prevalence of Convergence Insufficiency in Parkinson's Disease.

Irving Elizabeth L EL   Chriqui Estefania E   Law Caroline C   Kergoat Marie-Jeanne MJ   Leclerc Bernard-Simon BS   Panisset Michel M   Postuma Ronald R   Kergoat Hélène H  

Movement disorders clinical practice 20161120 3


<h4>Background</h4>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.<h4>Methods</h4>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  ...[more]

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