NCT02735278

Are There Different Objective Fixation Disparity Values for Two Different Test Paradigms

Are There Different Objective Fixation Disparity Values for Two Different Test Paradigms: Similar to Reading Dot Presentation and Text Reading? - How This Phenomenon Can be Explained

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 24 (actual)
• Sponsor: University of Applied Sciences and Arts Northwestern Switzerland · Academic / Other
• Sex: All
• Age: 17 Years – 40 Years
• Healthy volunteers: Accepted

Summary

In optometry, binocular coordination is measured subjectively. The result is subjective fixation disparity. In research different experiments have proven, that subjective and objective fixation disparity are different. A binocular eyetracker has to be calibrated. There are two well known calibration methods: associated and dissociated calibration. Objective fixation disparity is measured in arcMin. Therefore, the precision of the eyetracker plays a crucial role. Now, the investigators try to compare dissociated calibration with polarized filters and associated calibration under different test paradigms.

Conditions

• Vision Disparity

Interventions

Type	Name	Description
OTHER	different test paradigms

Timeline

• Start date: 2016-05-01
• Primary completion: 2017-01-01
• Completion: 2017-01-01
• First posted: 2016-04-12
• Last updated: 2017-01-12