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Author Spotlight: An Automated Method for Assessing Visual Acuity in Infants and Toddlers Using an Eye-Tracking System
Published on: March 17, 2023
Reporting on Australian childhood visual impairment: the first 10 years
Susan Silveira1,2, Frank J Martin3,4, Maree Flaherty5,6
1NextSense Institute, Sydney, NSW, Australia. sue.silveira@nextsense.org.au.
Insights
The Australian Childhood Vision Impairment Register identified common causes of childhood vision impairment, including retinal dystrophy and cortical visual impairment (CVI). Early diagnosis by a child's first birthday is crucial for intervention.
Area of Science:
- Ophthalmology
- Pediatric Neurology
- Public Health
Background:
- Childhood visual impairment impacts neurodevelopment and quality of life.
- The Australian Childhood Vision Impairment Register was established in 2008.
- Focuses on children diagnosed with permanent visual impairment.
Purpose of the Study:
- To report key findings on childhood visual impairment in Australia.
- To understand the epidemiology and characteristics of visual impairment in children.
- To provide data for research and planning.
Main Methods:
- Informed consent obtained from 904 children and their families.
- Ophthalmologists provided comprehensive data on ocular diagnoses and associated conditions.
- Data collected on visual acuity and visual fields, stored securely.
Main Results:
- Retinal dystrophy (17%), CVI (15%), and albinism (11%) were common primary diagnoses.
- Infantile nystagmus affected 33% of children; 44% had additional disabilities.
- Moderate visual impairment was most common; 68% diagnosed by age one.
Conclusions:
- Findings contribute to understanding rare eye diseases and visual pathway conditions.
- Represents a significant dataset on Australian childhood visual impairment.
- Highlights the importance of early diagnosis and intervention.
Background:
Visual impairment is rare but has significant impact on the neurobehavioural development and quality of life of children. This paper presents the key findings from the Australian Childhood Vision Impairment Register, which commenced in 2008 to report on children diagnosed with permanent visual impairment.
Subjects/Methods:
Families consent to completing a data form related to their child and for contact with the child's ophthalmologist. Ophthalmologists complete and return a comprehensive data form on the child's primary and secondary ocular diagnoses, associated disabilities and health conditions, visual acuity and visual fields. Data is stored on a secure database and anonymised data is available to researchers and for planning purposes.
Results:
Nine-hundred four children and their families provided informed consent for participation, with 57% males and 43% females. Most children spoke English in their home. Eighty-three percent of children were born full term, with a birth weight of >2500 g (81%). Children were commonly suspected to have visual impairment by a parent, with 68% of families receiving a diagnosis of visual impairment by their child's first birthday. The most common primary diagnoses were retinal dystrophy (17%), CVI (15%) and Albinism (11%). A secondary diagnosis of infantile nystagmus occurred in 33% of children. Additional disabilities and/or developmental delay were reported for 44% of children. Corrected binocular visual acuity was reported for 75% of children, with moderate visual impairment being most common.
Conclusions:
These findings contribute to knowledge of rare diseases affecting the eye and visual pathway and represent Australian childhood visual impairment.
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