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Optic nerve hypoplasia in infancy
Insights
Optic nerve hypoplasia (ONH) in infants presents unique challenges. Early detection through routine ophthalmic exams in neurologically impaired newborns is crucial for identifying ONH and its associated conditions.
Area of Science:
- Pediatric Ophthalmology
- Neonatal Neurology
- Medical Imaging
Background:
- Optic nerve hypoplasia (ONH) presents unique diagnostic challenges in infancy.
- Systemic associations and investigative approaches are specific to the neonatal period.
Observation:
- Six infants with ONH were studied.
- Cranial ultrasound revealed cerebral abnormalities in five infants.
- One infant experienced neonatal cholestatic jaundice and hypoglycemia.
Findings:
- Cerebral abnormalities are common in infants with ONH, detectable via cranial ultrasound.
- Neonatal complications like jaundice and hypoglycemia can occur in affected infants.
- Two infants died, highlighting the risk of undetected ONH.
Implications:
- Routine ophthalmic examination of neurologically abnormal neonates is vital for early ONH detection.
- Infancy allows for simple, non-sedated investigation of both ocular and systemic ONH features.
- Timely diagnosis improves management of ONH and its associated health issues.
Abstract:
Certain features of optic nerve hypoplasia (ONH), its systemic associations and investigation are exclusive to infancy. These include the facility to use cranial ultrasound, difficulties in assessing ocular features and visual function, and neonatal hypoglycaemia and jaundice. Six infants with ONH are presented; cerebral abnormalities were demonstrated by cranial ultrasound in five. Neonatal cholestatic jaundice and hypoglycaemia occurred in one infant. Two died and represent a group likely to remain undetected unless routine ophthalmic examination of neurologically abnormal neonates is undertaken. In infancy, both ocular and systemic aspects of ONH can be investigated simply and without sedation.