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Vision screening of preverbal children with Teller acuity cards
A Spierer1, Z Royzman, A Chetrit
1Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, Israel.
Insights
The modified Teller visual acuity test can screen vision in preverbal children, but it yields a high rate of false-positive results, indicating potential over-referrals for further eye exams.
Area of Science:
- Ophthalmology
- Pediatric Optometry
- Vision Screening
Background:
- Early detection of visual impairments in infants and preverbal children is crucial for timely intervention.
- Traditional visual acuity testing methods are challenging in non-verbal populations.
- The modified Teller visual acuity test (mTVAT) has been proposed as a screening tool for this age group.
Purpose of the Study:
- To assess the efficacy of the modified Teller visual acuity test (mTVAT) as a mass screening tool for visual acuity in infants and preverbal children.
- To determine the accuracy of mTVAT in identifying visual deficits in a pediatric population.
Main Methods:
- A prospective case series design was employed.
- 1126 healthy children underwent visual acuity testing using the mTVAT during mandatory examinations.
- Children who failed the mTVAT and a control group received clinical eye evaluations.
Main Results:
- 5% of children exhibited visual acuity below the normal range.
- The mTVAT demonstrated a 9% false-negative rate and a 44% false-positive rate among referred children.
- In the 12-17 month age group, false-negative and false-positive rates were 5.6% and 50%, respectively.
Conclusions:
- The Teller acuity card procedure is a viable option for vision screening in preverbal children.
- The screening method is associated with a significant rate of false-positive results, necessitating careful interpretation and follow-up protocols.
Objective:
To evaluate the modified Teller visual acuity test as a mass screening tool for testing visual acuity in infants and preverbal children.
Design:
Prospective case series.
Participants:
A total of 1126 healthy children undergoing mandatory examination at the Mother and Child Health Center.
Intervention:
Visual acuity was tested by the modified Teller visual acuity test.
Main Outcome Measures:
Visual acuity was measured in all children. Clinical evaluation was performed in children who failed the Teller acuity test and in a control group.
Results:
Visual acuity was below the normal range in 5% of the children. In the study group referred for complete eye examination, there were 9% false-negative and 44% false-positive results. In the age range of 12 to 17 months, false-negative and false-positive results were obtained in 5.6% and 50% of the children, respectively.
Conclusions:
The Teller acuity card procedure can be used for vision screening in preverbal children. Testing was associated with a high rate of false-positive results.