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

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

24 participants

Study Classification

OBSERVATIONAL

Study Start Date

2016-05-31

Study Completion Date

2017-01-31

Brief Summary

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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.

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Detailed Description

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Conditions

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Vision Disparity

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Interventions

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different test paradigms

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* VA without glasses/contact lenses 0.63
* Accurate accommodation on 57cm

Exclusion Criteria

* Tiredness at day of investigation
* Presbyopia
* Alcohol or drug abuse
* No eye related pathology
* No strabism
* No known epilepsy-attack in family

Minimum Eligible Age

17 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes