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Movement hyperacuity threshold deficit in juvenile onset diabetes mellitus
T J Buckingham1, S L Kelly, Y K Beh
1Department of Optometry, University of Bradford, UK.
Acta Ophthalmologica Scandinavica
|August 1, 1995
Summary
Children with insulin-dependent diabetes mellitus show impaired oscillatory movement displacement thresholds after age 8, even without retinopathy. This visual-motor skill test may detect early diabetic effects.
Area of Science:
- Ophthalmology
- Pediatrics
- Endocrinology
Background:
- Insulin-dependent diabetes mellitus (IDDM) can affect visual-motor skills.
- Early detection of IDDM complications is crucial in children.
- Retinopathy is a known complication, but subclinical effects may exist.
Purpose of the Study:
- To compare oscillatory movement displacement thresholds in children with and without IDDM.
- To investigate if IDDM affects visual-motor skills in the absence of retinopathy.
- To determine the age at which differences emerge.
Main Methods:
- Compared oscillatory movement displacement thresholds in 18 normal children and 26 children with IDDM (mean age ~9.5 years).
- Assessed children across a range of disease durations (6 months to 12 years).
- Analyzed threshold performance in relation to age and IDDM status.
Main Results:
- No significant difference in thresholds between groups under 8 years old.
- Thresholds correlated with age in both groups up to 8 years.
- Over 8 years, IDDM children had significantly degraded thresholds compared to controls (p <<0.0001).
- No subjects showed ophthalmoscopic evidence of retinopathy.
Conclusions:
- Oscillatory movement displacement thresholds can reveal the impact of IDDM on visual-motor skills in children.
- This effect is detectable even in the absence of retinopathy.
- Age is a critical factor, with significant divergence observed after 8 years of age.