Factors Affecting Visual Function in Children with Cerebral Visual Impairment

Area of Science:

• Pediatric Ophthalmology
• Neurodevelopmental Pediatrics
• Clinical Neuroscience

Background:

• Cerebral visual impairment (CVI) is a significant cause of visual dysfunction in children.
• Understanding the relationship between visual function and neurological status is crucial for effective management.

Purpose of the Study:

• To evaluate visual functions in children diagnosed with CVI.
• To determine the correlation between visual function and neurological status in this population.

Main Methods:

• Retrospective review of case records for children under 3 years with CVI.
• Visual function scoring based on fixation and following skills (0-15 scale).
• Neuromotor assessment using the Hammersmith Infant Neurological Examination (HINE).

Main Results:

• 233 children with CVI were analyzed; common etiologies included hypoxic-ischemic encephalopathy and prematurity.
• Visual function scores (VFS) did not differ significantly by etiology or MRI findings.
• Higher VFS was observed in children without seizures, and a weak correlation was found between HINE ratio and VFS.

Conclusions:

• Children with CVI typically exhibit severely impaired visual functions.
• Visual function is linked to neurological and motor deficits, seizure status, and co-occurring ocular conditions.