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Medico-Legal Relevance of Vision Loss in Paediatric Brain Injury

Cerebral Visual Impairment (CVI) is frequently under-recognised in paediatric brain injury claims - but the legal ramifications are significant. From care projections to causation arguments, understanding and evidencing CVI can directly influence claim outcomes.

In this expert-led session, Consultant Paediatric Ophthalmologist Prof. Jane Ashworth offers key insights on how CVI develops, how it differs from other visual conditions, and what solicitors need to look for when handling high-value brain injury cases.

CVI Is Often Missed in Early Assessments

CVI is a neurological condition that results from damage to the brain’s visual pathways. It does not affect the eye structure, which means early vision tests can appear “normal,” misleading clinicians and experts.

🔹 Early clear vision does not rule out CVI.

🔹 Symptoms often become apparent only as visual demands increase with age.

🔹 A robust medico-legal prognosis requires ongoing vision assessments, typically into age 7 or 8.

ROP vs CVI: Why It Matters for Causation

In premature infants, it's critical to distinguish between Retinopathy of Prematurity (ROP) and CVI.

“ROP, when well treated, may not cause long-term visual loss. CVI, however, may persist despite normal structural findings.” - Prof. Ashworth

Failing to differentiate between the two can misattribute vision loss, leading to weak causation arguments or undervalued claims. Instructed experts must explain this distinction clearly and defensibly in their reports.

Functional Impacts That Drive Claim Value

CVI affects how a child interacts with their environment, not just their ability to read a chart. These real-world consequences are central to medico-legal arguments around:

• Special educational support

• Safe accommodation planning (e.g., single-storey living)

• Future care costs and supervision needs

• Long-term independence projections

Ophthalmic Experts Are Key to Case Strength

Without credible ophthalmic evidence, CVI claims risk being under-evidenced or misinterpreted. The right expert can:

• Clarify how brain injury led to CVI

• Demonstrate functional impacts on development

• Reinforce claims for educational support and adapted housing

• Withstand defence challenge through clinical reasoning and robust documentation

Access our panel of 429 Ophthalmology Expert Witnesses >