Lighting as a Compensatory Strategy for Acquired Visual Deficits After Stroke: Two Case Reports

Area of Science:

• Rehabilitation Medicine
• Neuroscience
• Ophthalmology

Background:

• Acquired visual deficits following cerebrovascular accident (CVA) can significantly impair daily function.
• Inpatient rehabilitation facilities (IRFs) aim to optimize functional recovery for individuals post-CVA.
• Lighting conditions are a modifiable environmental factor that may impact visual function and task performance.

Purpose of the Study:

• To investigate the impact of enhanced lighting on grooming performance in individuals with visual impairments due to CVA.
• To assess the effectiveness of a short-term lighting intervention within an IRF setting.
• To determine if individualized lighting adjustments can improve functional outcomes in this population.

Main Methods:

• Utilized an ABAB single-subject research design with two participants.
• Intervention involved altering lighting conditions during grooming tasks.
• Measured functional improvement using the FIM® (Functional Independence Measure) grooming section scores and task completion times.
• Quantified lighting levels using a light meter.

Main Results:

• Both participants showed notable improvements in grooming function as assessed by FIM® scores.
• Task completion times for grooming activities were reduced with enhanced lighting.
• Objective light meter readings confirmed changes in illumination levels.

Conclusions:

• Individualized lighting interventions can positively influence grooming performance in individuals with CVA-related visual deficits.
• Optimizing environmental factors like lighting is a viable strategy in neurorehabilitation.
• Further research is warranted to explore the broader applications of lighting interventions for functional recovery post-stroke.