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Updated: Feb 10, 2026

Subjective Refraction Test Using a Smartphone for Vision Screening
Published on: October 18, 2024
Paediatric vision screening in the primary care setting in Ontario
Tran D Le1, Rana Arham Raashid2, Linda Colpa2
1Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario.
Many Ontario primary care physicians do not consistently follow recommended vision screening guidelines for children. Key barriers include lack of training, time constraints, and inadequate reimbursement, hindering early detection of vision loss.
Area of Science:
- Pediatric Ophthalmology
- Primary Care Medicine
- Public Health
Background:
- Early intervention is crucial for preventing treatable causes of childhood vision loss.
- Adherence to established vision screening guidelines is essential for timely detection of visual impairments.
Purpose of the Study:
- To evaluate primary care physicians' adherence to Canadian vision screening guidelines in Ontario.
- To identify barriers encountered in primary care settings that impede effective vision screening.
Main Methods:
- A cross-sectional survey was conducted.
- 19-question surveys were distributed to 3000 randomly selected family physicians, general practitioners, and pediatricians in Ontario.
Main Results:
- Only 65% of family physicians/GPs and 52% of pediatricians reported performing vision screening at every well-child visit.
- Red reflex testing was common in children under 3 (94%) but decreased significantly for older children (25%).
- Lack of training (50%), time constraints (42%), and inadequate reimbursement (17%) were primary barriers cited by physicians.
Conclusions:
- Current vision screening practices in Ontario primary care fall short of recommended guidelines.
- Addressing identified barriers is necessary to improve pediatric vision screening and prevent vision loss.
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