Long-term outcome of children with cortical visual impairment

Cortical visual impairment (CVI) is now the most common cause of visual impairment in children. Little is known about the long-term visual outcome. This study evaluates the outcome of children with congenital CVI. Using medical records, 423 children (225 males, 198 females) were identified with cong...

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Bibliographic Details
Published in:Developmental medicine and child neurology 2006-06, Vol.48 (6), p.508-512
Main Authors: Matsuba, Carey A, Jan, James E
Format: Article
Language:English
Subjects:
Anatomy
Atrophy - pathology
Attention
Behavior Patterns
Child
Child, Preschool
Childhood Needs
Developed Nations
Female
Follow-Up Studies
Humans
Hypoxia-Ischemia, Brain - complications
Intellectual Disability
Male
Medical Evaluation
Medical Services
Optic Nerve - pathology
Original Articles
Patients
Physical Examinations
Resistance (Psychology)
Standardized Tests
Time Factors
Vision Disorders - epidemiology
Vision Disorders - etiology
Vision Disorders - physiopathology
Visual Acuity
Visual Cortex - physiopathology
Visual Impairments
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Summary:Cortical visual impairment (CVI) is now the most common cause of visual impairment in children. Little is known about the long-term visual outcome. This study evaluates the outcome of children with congenital CVI. Using medical records, 423 children (225 males, 198 females) were identified with congenital CVI. Of these children, 259 had follow-up visual acuity assessments. The children's gestational age varied with 32 weeks or less representing 15.9%; 33 to 36 weeks representing 10.7%; 37 to 42 weeks representing 61.2%; and 43 weeks or greater representing 0.9% (11.3% of patients' gestational age was unrecorded). Clinical data were extracted and information regarding outcome was gathered. The majority of children showed improvement in their visual acuity levels after 2 or more years of follow-up. For the 194 children initially assessed before 3 years of age, 97 had improved, 75 were unchanged, 18 had deteriorated, and 4 had sub-optimal assessments. For the 74 children initially assessed at 3 or more years of age, 23 had improved, 44 remained unchanged, 3 had deteriorated, and 4 had sub-optimal testing. Children with better visual acuity levels at follow-up were more likely to have favourable cognitive outcomes (non-mental retardation) in 12.2% versus 2.8% (p
ISSN:0012-1622
1469-8749
DOI:10.1017/S0012162206001071