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Updated: Jul 24, 2026

Using an Automated Hirschberg Test App to Evaluate Ocular Alignment
Published on: March 24, 2020
[Quality of vision screening in childhood]
A Hohmann1, W Rüssmann, F A Kaszli
1Schielbehandlung und Neuroophthalmologie, Universität zu Köln.
Insights
The H-Test is the only satisfactory visual acuity screening method for young children in Germany. Current paediatrician practices are inadequate, necessitating standardized testing and improved training for amblyopia detection.
Area of Science:
- Ophthalmology
- Paediatric Medicine
- Public Health
Background:
- Paediatricians in Germany utilize three visual acuity tests: Pictures, Rodenstock-Test, and H-Test.
- The effectiveness of these screening procedures has not been thoroughly investigated.
Purpose of the Study:
- To evaluate the effectiveness of visual acuity tests used by German paediatricians.
- To identify optimal screening methods for early amblyopia detection in children.
Main Methods:
- A cohort of 303 children, referred by paediatricians, underwent comprehensive examination at Cologne University Eye Hospital.
- The examinations were conducted by an orthoptist and an ophthalmologist, establishing a gold standard for comparison.
Main Results:
- Sensitivity and specificity were calculated for each test used by paediatricians.
- Only the H-Test demonstrated satisfactory performance in identifying visual acuity deficits.
Conclusions:
- Current paediatric screening for amblyopia in 3.5 to 4-year-old children in Germany is insufficient.
- Standardization of visual acuity tests between paediatricians and ophthalmologists is recommended.
- Enhanced continuing education for medical personnel is crucial for improving screening quality.
Background:
In Germany the paediatricians use three different visual acuity tests (Pictures, Rodenstock-Test, H-Test). We investigated the effectiveness of these procedures.
Subjects:
In this study 303 children were referred by paediatricians to the study group in the Cologne Augenklinik. They were fully examined by an orthoptist and an ophthalmologist (gold standard).
Results:
From these data the sensitivity and specificity of the tests used by the paediatricians were calculated. Only the H-Test proved to be satisfactory.
Conclusion:
The actual situation of screening for amblyopia by paediatricians in children aged 3 1/2 to 4 is unsatisfactory in Germany. Paediatricians and ophthalmologists should use a similar test for visual acuity. Continuing education of medical personnel is desirable to ensure an adequate quality of screening.

