Seeing ophthalmologic problems in Parkinson disease: Results of a visual impairment questionnaire

Neurology. 2020 Apr 7;94(14):e1539-e1547. doi: 10.1212/WNL.0000000000009214. Epub 2020 Mar 11.


Objective: To determine the prevalence and clinical effect of ophthalmologic symptoms in patients with Parkinson disease (PD), compared with controls, using a standardized questionnaire.

Methods: In this observational, cross-sectional, multicenter study, 848 patients with PD and 250 healthy controls completed the Visual Impairment in Parkinson's Disease Questionnaire (VIPD-Q). The VIPD-Q addressed 4 domains according to structures: (1) ocular surface; (2) intraocular; (3) oculomotor; and (4) optic nerve. The questionnaire also assessed the effect of ophthalmologic symptoms on daily activities.

Results: One or more ophthalmologic symptoms were reported by 82% (95% confidence interval [CI], 80-85) of patients, compared with 48% (95% CI, 42-54) of controls (p < 0.001). Patients with PD experienced more ophthalmologic symptoms across all domains than controls (p < 0.001), as reflected by a higher VIPD-Q total score among patients (median 10 [interquartile range (IQR) 13]) than controls (median 2 [IQR 5]; p < 0.001). Ophthalmologic symptoms interfered with daily activities in 68% (95% CI, 65-71) of patients, compared with 35% (95% CI, 29-41) of controls (p < 0.001).

Conclusion: Patients with PD have a higher prevalence of ophthalmologic symptoms than controls. Moreover, these frequently interfere with daily activities. A screening questionnaire such as the VIPD-Q may help with identifying ophthalmologic symptoms in PD, thereby enabling more timely treatment.

Publication types

  • Multicenter Study
  • Observational Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Activities of Daily Living
  • Adult
  • Aged
  • Aged, 80 and over
  • Cross-Sectional Studies
  • Eye Diseases / epidemiology
  • Eye Diseases / etiology*
  • Female
  • Humans
  • Male
  • Mass Screening
  • Middle Aged
  • Parkinson Disease / complications*
  • Parkinson Disease / epidemiology
  • Prevalence
  • Quality of Life
  • Surveys and Questionnaires
  • Vision, Low