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Updated: Jun 13, 2026

A Method to Quantify Visual Information Processing in Children Using Eye Tracking
Published on: July 9, 2016
Childhood visual impairment in Fiji
Anasaini T Cama1, Biu Telaite Sikivou, Jill E Keeffe
1Centre for Eye Research Australia, University of Melbourne, Royal Victorian Eye and Ear Hospital, Locked Bag 8, East Melbourne 8002, Australia.
Insights
Childhood vision impairment in Fiji is prevalent, with unavoidable causes like retinal and cortical issues being most common. Avoidable causes, such as cataracts, also contribute to vision loss in children.
Area of Science:
- Ophthalmology
- Public Health
- Pediatrics
Background:
- Childhood visual impairment presents a significant public health challenge globally.
- Understanding the prevalence and causes of vision loss in children is crucial for targeted interventions, especially in developing nations.
Purpose of the Study:
- To determine the prevalence and etiological factors of low vision and blindness in children aged 0-15 years in Fiji.
- To compare findings with those from more industrialized nations.
Main Methods:
- Data collection involved hospital records, school screenings, and surveys targeting children aged 0-15.
- Prevalence was calculated using age-specific data and age at onset of vision loss.
- Causes of vision loss were identified for a subset of affected children.
Main Results:
- A probable prevalence of 1.134 per 1000 children for visual impairment was found.
- Retinal (39.7%) and cortical (15.5%) issues were the leading unavoidable causes; cataracts were the main avoidable cause (15.5%).
- Severe visual impairment (<20/200) affected 0.522 per 1000 children.
Conclusions:
- Fiji exhibits a low to moderate prevalence of childhood visual impairment.
- The etiological profile, dominated by unavoidable causes, mirrors that of developed countries.
- These findings suggest that strategies for managing childhood vision impairment may be transferable across different resource settings.
Objective:
To establish the prevalence and causes of low vision and blindness in children aged 0 to 15 years in Fiji using existing data and new surveys. Method Childhood visual impairment data on both low visual acuity (<20/60-20/400) and blindness (<20/400) were obtained from existing records at hospital clinics, the school, an outreach service for visually impaired children, primary school screening records, and surveys in high schools and schools for children with multiple disabilities. Crude prevalence was derived and, using 5-year age range and age at onset of vision loss, the probable prevalence per 1000 children was calculated.
Results:
A total of 81 children were identified; causes were established for 70 children, showing that 69% had unavoidable causes of vision loss (retinal, 39.7% and cortical, 15.5%), with the avoidable cause of low vision and blindness mainly being cataract (15.5%). Probable prevalence was 1.134 per 1000 children (95% confidence interval [CI], 1.115-1.153), with low vision, 0.774 per 1000 children (95% CI, 0.758-0.790) and blindness, 0.36 per 1000 children (95% CI, 0.349-0.371). The rate of severe visual impairment (<20/200) was 0.522 per 1000 children (95% CI, 0.509-0.535), only half of the total vision loss.
Conclusions:
Both the low to moderate prevalence and mainly unavoidable causes of visual impairment indicated that Fiji, a developing country, has prevalence and causes of visual impairment similar to more resourced, industrialized countries.
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