Visual Deficiencies due to Parkinson’s Disease : A Potential Biomarker
MetadataShow full item record
The motor and cognitive symptoms of Parkinson’s Disease (PD) have been well documented, but how does PD affect other vital processes of the body? Vision deficiency has been reported in several cases of PD, characterized by dysfunction in acuity/contrast, color discrimination, and morphological changes to the retina/fovea. Older adults (29 women, 33 men, Mage = 62.97, age range: 45 - 70 years) with (31 participants) and without (30 participants) PD were recruited with a classification below Stage 2 of the disease. All participants were tested for the 3 mentioned components of vision. The results of a multivariate analysis of variance (MANOVA) indicated an insignificant difference between the PD and control group in visual acuity (p > 0.05), color discrimination (p > 0.05), and morphological changes (p > 0.05). These findings lead to questions about the real effect of PD on visual capabilities, as literature shows an uncertain relationship between the two.