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The long-term visual effects of short-term binocular occlusion of at-risk neonates
Insights
Bilateral eye patching for neonatal jaundice in infants did not increase the risk of strabismus or reduced stereoacuity by age five. This finding contrasts with animal studies on visual deprivation, suggesting clinical safety for this neonatal jaundice treatment.
Area of Science:
- Ophthalmology
- Neonatal care
- Developmental neuroscience
Background:
- Neonatal jaundice is common and sometimes treated with eye patching.
- Animal studies suggest binocular visual deprivation can impact visual development.
- Concerns exist regarding potential long-term visual effects of patching in neonates.
Purpose of the Study:
- To investigate the long-term effects of bilateral eye patching in neonates treated for jaundice.
- To compare the incidence of strabismus and stereoacuity in patched versus unpatched children.
- To assess the clinical relevance of animal studies on visual deprivation to human neonatal care.
Main Methods:
- Retrospective comparative study.
- Fifty 5-year-old children treated with bilateral eye patching for neonatal jaundice.
- Comparison group: Fifty 5-year-old children treated in NICU without eye patching.
- Outcomes assessed: Incidence of strabismus and stereoacuity.
Main Results:
- No significant difference in strabismus incidence between the patched and unpatched groups.
- No significant difference in stereoacuity loss between the two groups.
- Clinical findings do not support negative visual development outcomes from patching.
Conclusions:
- Binocular eye patching for neonatal jaundice appears safe regarding strabismus and stereoacuity development.
- Clinical practice for neonatal jaundice treatment via eye patching does not correlate with adverse visual outcomes.
- Human clinical data contrasts with animal models of visual deprivation, indicating different physiological responses.
Abstract:
A retrospective study of fifty 5-year-old children whose eyes were patched bilaterally to treat neonatal jaundice was compared with a study of a similar group of fifty 5-year-old children who were treated in the intensive care nursery but whose eyes were not patched. No difference in the incidence of strabismus or loss of stereoacuity was established in these two groups. Despite the experimental evidence documenting changes in the visual cortex and interocular alignment in animals binocularly deprived of visual stimulation near birth, the clinical practice of binocularly patching the eyes of neonates with jaundice does not seem to increase the incidence of subsequent strabismus or loss of stereoacuity.