EPOS

European Paediatric Ophthalmological Society

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Visual fields in children affected by Periventricular Leukomalacia

Porro Giorgio¹, van der Linden Denise¹, van Nieuwenhuizen Onno², Wittebol-Post Dienke^1
1Department of Ophthalmology Utrecht University Hospital, ²Department of Child Neurology Utrecht University Hospital

Aim of the study. Periventricular Leukomalacia (PVL) is a lesion of the immature brain which may involve the optic radiations. Aim of this retrospective study is to search for signs of injury of the visual field (VF) in neurologically impaired children affected by PVL. Material and Methods. The monocular or binocular VF of 44 children (17 girls and 27 boys) aged from 6 months to 12 years was tested using standard- or behavioural perimetry. Results. VF could be performed in 95% of the children, mainly using behavioural perimetry (Befie test). In 19 subjects (43%) VF was normal, while 7 subjects (15%) showed an unilateral homonymous inferior quadrantanopia, 6 subjects (14%) showed a bilateral inferior homonymous quadrantanopia, 5 subjects (11%) showed a concentric VF defect, 2 subjects (5%) showed an homonymous hemianopia and one subject (2%) showed an unilateral homonymous superior quadrantanopia. Conclusions. The present study shows that VF defect are common in neurologically impaired children affected by PVL