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Growth of the fetal lens and orbit
Author(s) -
Dilmen G,
Köktener A,
Turhan N.Ö,
Tez S
Publication year - 2002
Publication title -
international journal of gynecology and obstetrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 97
eISSN - 1879-3479
pISSN - 0020-7292
DOI - 10.1016/s0020-7292(01)00581-1
Subject(s) - medicine , fetus , gestational age , gestation , biparietal diameter , lens (geology) , fetal growth , linear correlation , ophthalmology , nuclear medicine , pregnancy , head circumference , optics , physics , statistics , genetics , mathematics , biology
Objectives: To present normal lens and orbital measurement ranges by gestational age. Methods: Three hundred and thirty‐five women with uneventful pregnancies were evaluated from the 15th to the 40th week of gestation. Lens and orbital measurements were added to routine biometric measurements for normal fetuses. Results: A strong linear correlation was observed between gestational age (GA) and lens diameter ( R 2 =0.89; P <0.0001), circumference ( R 2 =0.89; P <0.0001), and surface ( R 2 =0.90; P <0.0001). A linear correlation was also found between GA and orbital diameter ( R 2 =0.92; P <0.0001), circumference ( R 2 =0.92; P <0.0001) and surface ( R 2 =0.95; P <0.0001). A linear growth function was observed between biparietal diameter and both lens diameter ( R 2 =0.90; P <0.0001) and orbital diameter ( R 2 =0.94; P <0.0001). Conclusions: Lens and orbital measurements provide normative data for fetal growth and development. These data may be also helpful in detecting fetal ocular anomalies.