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Photographic screening for strabismus and high refractive errors of children aged 1-4 years
Insights
Ophthalmologists used photographs to screen 182 young children for vision problems. The method identified several cases of strabismus and refractive errors, proving effective for early detection of pediatric eye conditions.
Area of Science:
- Ophthalmology
- Pediatric eye care
- Diagnostic imaging
Background:
- Early detection of vision abnormalities in children is crucial for effective treatment.
- Screening programs aim to identify conditions like strabismus and refractive errors in young populations.
- Photographic methods offer a potential tool for large-scale pediatric eye screening.
Purpose of the Study:
- To evaluate the efficacy of photographic screening for diagnosing squint and refractive errors in children aged 1-4 years.
- To assess the diagnostic accuracy and reliability of using corneal and fundus reflexes from photographs.
Main Methods:
- 182 children (age 1-4) were photographed during routine health screenings.
- An ophthalmologist analyzed photographs for changes in corneal and fundus reflexes to detect potential eye conditions.
- Identified cases were subsequently confirmed through clinical examinations.
Main Results:
- The photographic screening detected 7 pathological cases, including esotropias, microesotropia, hyperopia, and anisocoria.
- A low rate of false positives (6 cases) and screening failures (14 cases) was observed.
- Clinical follow-up of a control group with normal reflexes indicated no significant anisometropia or high refractive errors.
Conclusions:
- Photographic screening using corneal and fundus reflexes is a viable method for detecting squint and refractive errors in young children.
- The technique shows promise for early identification of pediatric eye conditions, facilitating timely intervention.
- Further validation may enhance its role in public health eye screening programs.
Unlabelled:
182 children (age 1-4 years) were photographed by health sisters at the annual screening at the children's health care center as described by Kaakinen (1979). The photographs were examined by an ophthalmologist to diagnose squint and/or refractive error cases based on the typical changes in the corneal and fundus reflexes. The cases found in this way were controlled clinically.
Results:
7 pathological cases were detected: 2 esotropias, 1 microesotropia, 2 hyperopias of both eyes, 2 anisocorias. False positive were 6 cases, from which 4 were false positive microstrabismus suspects and 2 cases with asymmetrical fundus reflexes, which were normal. 14 cases failed (9 (4.9%) looked to the side, and 5 (2.7%) were technical failures). For the reliability of the method, a random sample of 20 children, who had normal corneal and fundus reflexes were examined clinically. No anisometropia of over 0.5 diopters appeared among these 20 control cases, and the highest hyperopic and astigmatic errors that appeared were +1.75 diopters. All the astigmatic cases were combined with a slight myopia of -0.5- -1.0 diopters in each case. No higher myopias occurred in this group, and all these 20 children had straight eyes with the cover test at near fixation.
