A Study to Determine the Location of the Blind Spot and the Macula-disc Centre Distance on a Fundus Photograph
Completed
- Conditions
- Generalized Visual Field Contraction or Constriction
- Registration Number
- NCT01843582
- Lead Sponsor
- Turku University Hospital
- Brief Summary
The study is aimed to develop a new reaction-time based method for examining the visual field and to study the effect of refractive error on the magnification of a fundus photograph in order to evaluate the true size of a retinal feature.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 17
Inclusion Criteria
- No disease that effect the fundus photograph or visual field
Exclusion Criteria
- any disease that effects the fundus photograph or visual field
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Macula-disc centre distance one measurement at the start of the study Measurement is done on a fundus photograph (one visit and one examination for each patient)
- Secondary Outcome Measures
Name Time Method Location of the blind spot one measurement at the start of the study The location of the blind spot is screened using Octopus custom made visual field program at the one visit (one visit and one study for each patient) and a novel reaction-time based visual field device.
Trial Locations
- Locations (1)
Turku University Hospital
🇫🇮Turku, Finland