Screening of Septo-optic Dysplasia During a Fetal Examination at 16-20 Weeks of Gestation

Up to now, optic chiasm measurement were all done in the third trimester. in the present study, OC will be measure directly in a 2D ultrasound in coronal plane within the second trimester. In fetuses with SP agenesis, the morphology and width of the OC visual pathway may be a suitable tool to assess its development. It can also assist in the difficult task of providing prenatal counseling when faced with a diagnosis of CP agenesis. therefore In the present study, it was planned to show the optic chiasm in the screening of septooptic dysplasia by ultrasound between 16-20 weeks of gestation, and to measure the optic chiasma width and length, and to determine the mean values in the second trimester.