An interventional study of measurement of the cyclofusion in Cyclofusion Competence, sponsored by Cantonal Hospital of St. Gallen. Status unknown. Open to participants aged 12 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-10-26.
Sponsored by Cantonal Hospital of St. Gallen · Not applicable, Interventional, and Diagnostic
With this study the investigator wants measure the individual cyclofusion competence from healthy subjects and patients suffering from Strabismus with a only binocularly visible threedimensional Landolt-C stimulus. For this the participant has to look at a 3-D monitor with shutter glasses. The participant is sitting in 2 meter distance in front of the monitor. On the monitor appears the Landolt-C stimulus as a dynamic Random-Dot Stimulus. As long as the participant can fuse the stimulus he will be able to see the Landolt C-ring threedimensional. The participant is then ask to tell in which direction the notch of the Landolt-C ring points out. Once a critical degree of cyclotorsion is reached the participant will no longer be able to see the Landolt C ring and the individual cyclofusion competence is reached.
Exclusion Criteria:
Diagnostic Test: measurement of the cyclofusion
Measurement of the maximal cyclofusion competence with a dynamic 3-D Random-Dot Landolt-C stimulus
In- and excyclofusion competence in healthy individuals. Change in In- and excyclofusion competence in patients who need a strabismus surgery before and 6 month after surgery.
The maximum in- and maximum excyclofusion competence will be measured with the described test set-up. The results will be documented in degree.
Time frame: Once in healthy individuals. Before and 6 month after a (independent from the study) performed strabismus surgery.
No study locations are listed for this record.
This study is status unknown, as verified in Oct 2017. You cannot join it, but the record below documents what was studied.
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Cantonal Hospital of St. Gallen