Paeds Cases · ophthalmology
Explaining cortical visual impairment and environmental adaptation — OSCE
Communication and structured-discussion OSCE on explaining a diagnosis of cortical visual impairment in a 10-month-old ex-preterm infant to a parent, covering that the visual difficulty arises from the brain rather than the eye despite a structurally normal eye, the paradoxical behaviours of light-gazing and distance-better-than-near vision, why there is no drug or surgery for the cortex and the hope of improvement through neuroplasticity, the practical environmental adaptations at home that immediately help the child use available vision, and the role of the multidisciplinary team.
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Candidate instructions (8-minute station)
You are the paediatric registrar in the neurodisability clinic. A 10-month-old girl born at 26 weeks gestation, who has spastic diplegia, does not reliably fix and follow or reach for toys held in front of her. She turns toward the window light but ignores faces held close. Her external eye exam, red reflexes and dilated fundus are normal, with clear media and a healthy retina. [6]
Your tasks are: [1]
- Explain the diagnosis of cortical visual impairment in plain language, including why the baby sees poorly despite a healthy eye. [2]
- Describe the paradoxical behaviours the parent may have noticed, and what they mean. [2]
- Explain the habilitative approach — why there is no drug or surgery for the cortex, the hope of improvement through the brain rewiring, and the practical environmental adaptations at home. [11]
- Outline the team that will support the family and the plan ahead. [7]
You are not expected to order new investigations in this station or to discuss urgent imaging — the eye is normal and the diagnosis is being explained. [1]
References5ShowHide
- [1]Phillips MJ; Chang MY Update on Cerebral/Cortical Visual Impairment (CVI) in Children. Int Ophthalmol Clin, 2026.PMID 41870238
- [2]Philip SS; Dutton GN Identifying and characterising cerebral visual impairment in children: a review. Clin Exp Optom, 2014.PMID 24766507
- [6]Khurana R; Shyamsundar K; Taank P; et al Periventricular leukomalacia: an ophthalmic perspective. Med J Armed Forces India, 2021.PMID 33867629
- [7]Galli J; Loi E; Calza S; et al Natural history of cerebral visual impairment in children with cerebral palsy. Dev Med Child Neurol, 2025.PMID 39316724
- [11]Pehere NK; Dutton GN Perceptual visual dysfunction in children - An Indian perspective. Indian J Ophthalmol, 2021.PMID 34304166