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Updated: Oct 7, 2026

Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
Published on: January 23, 2017
Effects of preschool screening for vision and hearing on prevalence of vision and hearing problems 6-12 months later
Insights
Preschool vision screening effectively reduced vision problems in children. However, preschool hearing screening did not show similar benefits, with seasonal variations impacting results.
Area of Science:
- Pediatric ophthalmology
- Audiology
- Public health screening programs
Background:
- Early detection of vision and hearing impairments in children is crucial for development.
- Previous studies suggest screening programs can improve health outcomes.
- The effectiveness of preschool vision and hearing screening requires ongoing evaluation.
Purpose of the Study:
- To compare the prevalence of vision and hearing problems in children previously screened versus those not screened.
- To assess the impact of preschool screening on the need for corrective measures like eyeglasses.
- To evaluate the long-term effectiveness of preschool vision and hearing screening programs.
Main Methods:
- A cohort study design comparing 763 screened and 743 non-screened kindergarten children.
- Children were matched for age, sex, and socioeconomic status.
- A trained nurse-tester conducted vision and hearing examinations.
Main Results:
- Screened children had significantly fewer vision problems (10% vs. 15%) and a higher rate of eyeglass use (58% more).
- No statistically significant difference in hearing problems between screened (16.8%) and non-screened (14%) groups.
- Hearing problem prevalence showed seasonal variation, peaking in late autumn/early winter.
Conclusions:
- Preschool vision screening is associated with improved outcomes, including fewer vision problems and increased eyeglass use.
- Preschool hearing screening, in this study, was not linked to better outcomes and showed seasonal fluctuations.
- Further research may be needed to optimize hearing screening protocols and address seasonal influences.
Abstract:
In order to determine whether children screened 6-12 months previously for vision and hearing had fewer vision and hearing problems than a non-screened cohort, a trained nurse-tester examined 763 screened and 743 non-screened kindergarten children matched for age, sex, and socioeconomic status. The screened cohort had significantly fewer vision problems (10%) than the unscreened (15%). The difference for moderately severe problems (visual activity 20/50 or worse) was also significant. 58% more screened than unscreened children were wearing glasses. The screened cohort had more hearing problems (16.8%) than the non-screened group (14%), but the difference was not statistically significant. There was a marked seasonal variation in prevalence of hearing problems, the frequency in November and December being twice that in April, presumably a result of increased frequency of upper respiratory problems in those months. Preschool hearing screening, unlike vision screening, is not associated with improved end results.
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Vision During Infancy and Toddlerhood
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