Clinical Trial: A Study to Determine the Location of the Blind Spot and the Macula-disc Centre Distance on a Fundus Photograph

Study Status: Completed
Recruit Status: Completed
Study Type: Observational [Patient Registry]

Official Title: A Study to Develop Both a Novel Method for Evaluating the True Size of a Retinal Object on Fundus Photographs and a New Reaction-time Based Method for Studying the Visual Field on Healthy Volunteers

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 Summary:
Sponsor: Turku University Hospital

Current Primary Outcome: Macula-disc centre distance [ Time Frame: one measurement at the start of the study ]

Measurement is done on a fundus photograph (one visit and one examination for each patient)


Original Primary Outcome: Same as current

Current Secondary Outcome: Location of the blind spot [ Time Frame: 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.


Original Secondary Outcome: Same as current

Information By: Turku University Hospital

Dates:
Date Received: April 26, 2013
Date Started: May 2013
Date Completion:
Last Updated: February 26, 2015
Last Verified: May 2013