Free previewYou're reading the free part of this topic. The rest is included with Clinical.See what's included
Cortical visual impairment
Neuro-Ophthalmology
Key Points
- •CVI is the leading cause of visual impairment in children in developed countries - characterised by normal pupillary reflexes and normal fundoscopy despite significant visual loss
- •Hypoxic-ischaemic encephalopathy and periventricular leukomalacia are the most common causes in children; PCA stroke is the leading cause in adults
- •Key clinical features in children: colour preference (red/yellow), visual latency, difficulty with crowded scenes, preference for movement, and light-gazing
- •Anton syndrome (visual anosognosia - patient denies blindness) is pathognomonic of bilateral PCA stroke causing cortical blindness
- •Children with CVI can show significant improvement with neuroplasticity-based rehabilitation (Roman-Lantzy CVI Range protocol) - early intervention is critical
Free preview ends here
Keep reading Cortical visual impairment
17 more sections are included with the Clinical plan.
- Definition
- Epidemiology
- Aetiology and causes
- Pathogenesis
- Classification
- Risk factors and associations