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Published on: March 17, 2023
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Measuring visual fields in children with cerebral visual impairment using Baby Vision Screener.
Monika Thakur1,2, Tithi Halder1, Anantha Padmanabhan1
1Brien Holden Institute of Optometry and Vision Sciences, Hyderabad Eye Research Foundation, L V Prasad Eye Institute, Hyderabad, India.
Summary
The Baby Vision Screener (BaViS) is a reliable tool for assessing visual fields in children with cerebral visual impairment (CVI). This study found that BaViS effectively identified visual field defects in a significant portion of children with CVI.
Area of Science:
- Ophthalmology
- Pediatric Neurology
Background:
- Cerebral visual impairment (CVI) affects visual processing in children.
- Accurate assessment of visual field defects is crucial for managing CVI.
Purpose of the Study:
- To evaluate the feasibility and reliability of the Baby Vision Screener (BaViS) for visual field testing.
- To identify visual field defects in children diagnosed with CVI.
Main Methods:
- Retrospective review of medical records for 32 children (11 months-14 years) with CVI.
- Kinetic perimetry using the in-house developed BaViS device to plot visual field isopters.
- Assessment of visual acuity and contrast sensitivity using appropriate tools.
Main Results:
- BaViS testing was feasible in 91% of children, with reliable visual field isopters obtained in 72%.
- Visual field defects were identified in 38% of children with reliable results, commonly showing generalized or inferior field reduction.
- 62% of children presented with impairments in multiple visual function domains.
Conclusions:
- The Baby Vision Screener (BaViS) demonstrates potential for quantifying visual fields in young children with CVI.
- Approximately two-fifths of the CVI cohort exhibited visual field defects.
- Comprehensive visual field assessment is vital for the management of pediatric CVI.
