NCT04957745

Understanding Visual Confusion Using Stereoscopic Displays

Monocular Visual Confusion for Field Expansion

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 13 (actual)
• Sponsor: Massachusetts Eye and Ear Infirmary · Academic / Other
• Sex: All
• Age: 14 Years
• Healthy volunteers: Accepted

Summary

In this research study we want to test how people understand a visual scene when the same image is presented to both the eyes, but portions of these images are altered in terms of contrast, depth or in some cases motion.

Conditions

• Diplopia
• Binocular Vision Suppression
• Binocular; Fusion, With Defective Stereopsis
• Monocular Diplopia

Interventions

Type	Name	Description
BEHAVIORAL	Binocular visual confusion (unilateral opaque)	The peripheral target was a horizontally drifting grating measuring 10° by 10°, with a spatial frequency of 1 cycle per degree and a temporal frequency of 3 Hz, and located at 10° above the fixation. For the binocular visual confusion condition, the non-transparent (opaque) peripheral target will be displayed on only one eye (unilateral opaque display).
BEHAVIORAL	Unilateral monocular visual confusion (unilateral see-through)	The peripheral target was a horizontally drifting grating measuring 10° by 10°, with a spatial frequency of 1 cycle per degree and a temporal frequency of 3 Hz, and located at 10° above the fixation. For the unilateral monocular visual confusion condition, the half-transparent peripheral target will be displayed on only one eye (unilateral see-through display).
BEHAVIORAL	Bilateral monocular visual confusion (bilateral see-through)	The peripheral target was a horizontally drifting grating measuring 10° by 10°, with a spatial frequency of 1 cycle per degree and a temporal frequency of 3 Hz, and located at 10° above the fixation. For bilateral monocular visual confusion condition, the half-transparent peripheral target will be displayed on both eyes (bilateral see-through display).

Timeline

• Start date: 2021-11-09
• Primary completion: 2022-07-27
• Completion: 2022-07-27
• First posted: 2021-07-12
• Last updated: 2023-07-10
• Results posted: 2023-07-10

Locations

1 site across 1 country: United States