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Visual functions after perinatal macular haemorrhage
Insights
Perinatal macular hemorrhage did not lead to amblyopia or strabismus in children. A 5-year follow-up study found no evidence of these vision impairments in affected infants.
Area of Science:
- Ophthalmology
- Pediatric Medicine
- Visual Neuroscience
Background:
- Perinatal macular hemorrhage is a potential risk factor for visual impairments.
- Amblyopia and strabismus are common conditions affecting visual development.
Purpose of the Study:
- To investigate the long-term effects of perinatal macular hemorrhage on visual development.
- To determine if perinatal macular hemorrhage causes organic amblyopia or strabismus.
Main Methods:
- Follow-up examination of 39 children at age 5 who experienced perinatal macular hemorrhage.
- Assessment of visual acuity, cycloplegic refraction, and binocular function (cover test, 4d-prism test).
- Evaluation of fixation (ophthalmoscope) and sensory function (Schober test, Worth 4-dot-test).
Main Results:
- No organic amblyopia was detected in the examined children.
- No strabismus was observed in the study group.
- The findings suggest a lack of correlation between perinatal macular hemorrhage and these specific visual impairments.
Conclusions:
- Perinatal macular hemorrhage does not appear to be a cause of organic amblyopia.
- Perinatal macular hemorrhage is not associated with the development of strabismus.
- Further research may be needed to fully understand the visual outcomes in infants with perinatal macular hemorrhage.
Abstract:
Perinatal macular haemorrhage has been suggested as being a cause of amblyopia and strabismus. 39 of 48 children with macular haemorrhage after birth were examined at the age of 5 years. The study comprised visual acuity with E-test types and cycloplegic refraction. Binocular function was evaluated by cover test, and 4d-prism test. Fixation was studied by an ophthalmoscope with a central dark star. Sensory function was estimated by Schober test and Worth 4-dot-test. The observations gave no support to the existence of organic amblyopia or strabismus following perinatal macular haemmorrhage.