The relation between clutter and visual fatigue in children with cerebral visual impairment

Area of Science:

• Ophthalmology
• Neuroscience
• Pediatrics

Background:

• Cerebral visual impairment (CVI) is a common cause of visual dysfunction in children, often linked to neurological conditions.
• Environmental factors, such as visual clutter, can significantly impact visual perception and comfort in individuals with CVI.

Purpose of the Study:

• To investigate the relationship between visual clutter and visual fatigue in children diagnosed with CVI.
• To evaluate the efficacy of algorithmic metrics in quantifying visual clutter in children's play areas and its correlation with visual fatigue.

Main Methods:

• Visual clutter was assessed using algorithmic metrics and subjective observations by a clinical researcher.
• A Qualtrics survey was employed to gather subjective data on visual clutter and fatigue.
• Seventy-two children with CVI participated, with a mean performance age of 7 years and 4 months.

Main Results:

• Over 90% of children with CVI reported visual fatigue.
• A significant correlation was found between clutter and visual fatigue observations (r_s=0.29, p=0.01).
• Algorithmic metrics correlated with visual clutter observations but not directly with visual fatigue.

Conclusions:

• Children with CVI experience visual fatigue, especially in visually cluttered settings.
• Clinicians and caregivers should monitor for signs of visual fatigue for timely intervention.
• Algorithmic tools can aid in assessing clutter but require clinical interpretation for a comprehensive understanding of visual fatigue in CVI.