Cerebral Visual Impairment in Pediatric Populations

Cerebral visual impairment (CVI) has emerged as the leading cause of visual dysfunction in children within industrialised societies, surpassing ocular pathologies as survival rates improve for infants experiencing perinatal neurological insult. CVI arises from damage to the visual pathways or processing centres in the brain, most commonly due to hypoxic–ischaemic events, periventricular leukomalacia or genetic syndromes affecting cortical development. Affected children may present with preserved ocular structures yet exhibit reductions in visual acuity, constricted visual fields, impaired contrast sensitivity and higher-order deficits in attention, visual search and perception. These impairments profoundly affect learning, motor development and social interaction, often masquerading as developmental coordination disorder or general learning disability. Early recognition relies on structured clinical history taking, targeted questionnaires and functional assessments, but diagnostic delays remain widespread. Recent advances in virtual-reality assessment, eye-tracking and genotype–phenotype correlation have begun to clarify the heterogeneous mechanisms underlying CVI and to inform tailored interventions. Prompt multidisciplinary evaluation enables adaptation of educational materials, vision-directed therapy and supportive technologies that harness neuroplastic potential during critical developmental windows. On a global scale, standardised screening and consensus guidelines are essential to ensure equitable access to diagnosis, minimise unmet visual needs and optimise long-term outcomes for affected children.

Research from Nature Portfolio

Recent studies have employed naturalistic scene paradigms combined with eye-tracking to dissect the balance between salience-driven and semantic-driven visual search in children with CVI. Findings indicate that saliency cues predominate in guiding gaze, while semantic information offers less benefit than in neurotypical peers. Children with CVI demonstrated larger search areas, increased fixation counts and slower target localisation, regardless of cue modality. These results emphasise higher-order processing deficits and point towards the development of training strategies that amplify relevant salience features to support everyday visual tasks.

Cerebral Visual Impairment in Pediatric Populations publication trend

The graph below shows the total number of articles in cerebral visual impairment in pediatric populations across all publications each year (not limited to Nature Index journals).

Technical terms

Cerebral visual impairment: Visual dysfunction caused by damage to brain structures or pathways rather than the eyes themselves.

Saliency cues: Visual features that naturally attract attention, such as contrast, colour or motion.

Visual acuity: The clarity or sharpness of vision, typically measured by the ability to discern letters or symbols at a standard distance.

Dorsal stream: Neural pathway in the brain associated with processing spatial location and motion (“where” vision).

Saccades: Rapid, ballistic eye movements that redirect the line of sight between points of interest.

References

1. Visual search patterns during exploration of naturalistic scenes are driven by saliency cues in individuals with cerebral visual impairment. Scientific Reports (2024).
2. Cerebral visual impairment: genetic diagnoses and phenotypic associations. Journal of Medical Genetics (2024).
3. Impact of Cerebral Visual Impairments on Motor Skills: Implications for Developmental Coordination Disorders. Frontiers in Psychology (2016).
4. Cerebral versus Ocular Visual Impairment: The Impact on Developmental Neuroplasticity. Frontiers in Psychology (2016).
5. Cerebral visual impairment‐related vision problems in primary school children: a cross‐sectional survey. Developmental Medicine & Child Neurology (2021).
6. The Multidisciplinary Guidelines for Diagnosis and Referral in Cerebral Visual Impairment. Frontiers in Human Neuroscience (2022).
7. Assessing Higher-Order Visual Processing in Cerebral Visual Impairment Using Naturalistic Virtual-Reality-Based Visual Search Tasks. Children (2022).