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Development of the human eyeball and orbit during the fetal life
Ewa Tomasik1, Damian Czepita, Maria Zejmo
1Katedra i Zakład Anatomii Prawidłowej Pomorskiej Akademii Medycznej al. Powstańców Wlkp. 72, 70-111 Szczecin.
Insights
Human eye and orbit growth during fetal development show a strong correlation. Both eyeball dimensions and orbital size increase significantly with gestational age.
Area of Science:
- Ophthalmology
- Developmental Biology
- Human Anatomy
Background:
- Understanding ocular and orbital development is crucial for diagnosing congenital abnormalities.
- Fetal growth patterns provide insights into normal anatomical progression.
Purpose of the Study:
- To document the developmental trajectory of the human eyeball and orbit during fetal life.
- To establish correlations between ocular and orbital growth parameters.
Main Methods:
- Examination of 36 human fetal eyes and orbits (17-28 weeks gestation).
- Measurement of axial and equatorial eyeball diameters, and orbital depth and width.
- Statistical analysis using Student's t-test and Pearson's correlation coefficients.
Main Results:
- Significant increases in eyeball axial length and equatorial diameter with advancing gestational age.
- Significant increases in orbital depth and width correlating with fetal age.
- Strong positive correlations observed between axial eye growth and orbital depth, and equatorial eye growth and orbital width.
Conclusions:
- Human eyeball and orbit dimensions increase progressively throughout fetal development.
- Ocular and orbital growth are tightly correlated during the fetal period.
- These findings provide a normative reference for fetal eye and orbit development.
Purpose:
The aim of this paper was to describe the development of the human eyeball and orbit during fetal life.
Material And Methods:
Eighteen human fetuses (36 eyes and 36 orbits) with gestational age ranging from 17 to 28 weeks were examined. Fetuses died in the first hours of life due to immaturity and did not reveal any developmental anomalies. The axial and equatorial diameters of the eyeballs as well as the depth and width of the orbits were measured. The data was analyzed statistically with Student's t-test and Pearson's correlation coefficients.
Results:
It was found that the axial length (p < 0.005) and equatorial diameter (p < 0.001) of the eyeballs, as well as the depth (p < 0.001) and width (p < 0.001) of the orbit increase with age. Furthermore, growth of the axial length of the eye is paralleled by increase in orbital depth (p < 0.001) while growth of the equatorial diameter coincides with increasing orbital width (p < 0.001). It was ascertained that growth of the human eye during fetal life is correlated with growth of the orbit.
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