The psychophysical properties of the defect and intact visual field in patients with post-chiasmatic lesions, an exploratory study.

Completed

• Conditions: cortical blindness; Hemianopia; 10029301

• Registration Number: NL-OMON43283
• Lead Sponsor: Radboud Universitair Medisch Centrum

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Completion: 2019-01-01
• Last Update Posted: 28 February 2024

Recruitment & Eligibility

• Status: Completed
• Sex: Not specified
• Target Recruitment: 38

Inclusion Criteria

Patients:
- At least 18 years old.
- Patients with visual field defects as consequence of post-chiasmatic lesions.
- Normal or corrected-to-normal vision. ;Controls:
- At least 18 years old.
- Normal or corrected-to-normal vision.

Exclusion Criteria

Patients:
* Presence of visual neglect (tested with character line bisection).
* Self-reported presence of other neurological, psychiatric or ocular impairments that might influence attention or the visual system.
Controls:
* Self-reported presence of neurological, psychiatric or ocular impairments that might influence attention or the visual system.

Study & Design

• Study Type: Observational non invasive
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>- Patient experiences: results on visual quality of life questionnaires<br /><br>- Ophthalmological: result of non-invasive ophthalmological exam<br /><br>- Psychophysical: performance on computer tasks (UFOV, Gabor detection,<br /><br>Visual motion detection taak en scene recognition taak.)</p><br>

Secondary Outcome Measures

Name	Time	Method
<p>Eye movement measured non-invasively with a video-based eye-tracker.</p><br>