Restoration vs. Compensation in Neurovisual Rehabilitation of Visual Field Defects

Visual field defects (VFD) are a frequent effect of cerebral lesions especially after posterior cerebral artery stroke. The present study was conducted to compare effects of vision restoration training (VRT) and compensation training (Visual Exploration Training, VET) on visual field performance.

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Key information

Conditions

Hemianopia Blindness Brain Diseases Brain Injuries Brain Injuries, Traumatic Central Nervous System Diseases Craniocerebral Trauma Eye Diseases Hemianopsia Nervous System Diseases Neurologic Manifestations Pathological Conditions, Signs and Symptoms Sensation Disorders Signs and Symptoms Trauma, Nervous System Vision Disorders Wounds and Injuries

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Inst. f. Medical Psychology, Univ. of Magdeburg

Magdeburg, 39120, Germany

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Visual field defects after brain damage
lesion age above 6 months
documented brain lesions due to ischemic stroke, hemorrhage or tumor demonstrated by computer tomography or by magnet resonance imaging

Exclusion criteria

hemispatial neglect
complete blindness
severe psychotic diseases
serious drug abuse
chronic degenerative diseases (dementia, multiple sclerosis)
severe motor impairments
noticeable low intelligence influencing proper comprehension of diagnostic and training instructions
considerable impaired vision (visual acuity below 0.1 generated by amblyopia, opacity of cornea or lens, maculopathy and other retinal diseases where vision impairment is expected in the next month (e.g. subretinal neovascularisation, retinitis pigmentosa, diabetic retinopathy)
inability to fixate due to central scotoma, pathological nystagmus or other forms of fixation disabilities

Treatment and study plan

Vision Restoration Training (VRT)

Behavioral

Vision Exploration Training (VET)

Behavioral

Primary outcomes

High Resolution Perimetry - Detectection performance change before vs. after training (%)

Time frame: 3 months
Humphrey Field Analyzer (Static Perimetry) - Detectection performance change before vs. after training (%)

Time frame: 3 months

Sponsors and collaborators

Lead sponsor

University of Magdeburg

Other

Registry information

Important dates

Study start: 2003
Primary completion: 2005
Study completion: 2005
First posted: Aug 2, 2019
Registry last updated: Aug 2, 2019

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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