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Hyaloid vascular remnants in human neonates
Annals of Ophthalmology
|February 1, 1977
Summary
Hyaloid vessel remnants are common in premature infants, with higher rates in those born early or with low birth weight. These eye changes may help assess gestational age in newborns.
Area of Science:
- Ophthalmology
- Neonatology
- Developmental Biology
Background:
- Hyaloid vessel remnants are transient fetal structures in the eye.
- Their persistence can be associated with various ocular conditions.
- Understanding their prevalence in newborns is crucial for developmental assessments.
Purpose of the Study:
- To investigate the prevalence and characteristics of hyaloid vessel remnants in a cohort of newborns.
- To determine if remnant presence correlates with gestational age and birth weight.
- To explore the potential of these remnants as a biomarker for gestational age assessment.
Main Methods:
- Ophthalmoscopic examination of 226 infants within 36-48 hours of birth.
- Utilized direct and binocular indirect ophthalmoscopy techniques.
- Categorized remnant presence and completeness.
Main Results:
- Hyaloid vessel remnants observed in over 90% of infants <36 weeks gestation.
- Remnants found in over 95% of infants <5 lbs birth weight.
- Complete remnants were significantly more frequent in preterm and low birth-weight infants than previously reported.
Conclusions:
- High prevalence of hyaloid vessel remnants in preterm and low birth-weight infants.
- Distinctive, orderly changes in the premature eye suggest potential for gestational age assessment.
- Further research is warranted to validate this method for neonatal assessment.