"ORBITAL INDEX AMONG IKA ETHNIC GROUP OF DELTA STATE IN NIGERIA"
Keywords:orbit, craniofacial anomalies, caliper
The orbit is the bony socket of the skull in which the eye and its appendages are located. Normal values of orbital height, orbital width and orbital index are vital anthropometric measurements in evaluation and diagnosis of craniofacial anomalies. The aim of this study was to determine the orbital index of the Ika ethnic group of Delta State in Nigeria. Totality of 384 adults (males 200; females 184) between the ages of 18-35years were sampled for this study. The dimensions of the orbits for right and left sides were measured using a venier caliper. Orbital height and width for male was 25.17±4.29mm; 33.23±3.98mm and that for female was 23.36±3.53mm; 31.83±3.68mm correspondingly. The orbital index was 74.56 ± 7.67 and 74.83 ± 8.5 for right and left sides respectively, the orbital index for male and female was 75.58 ± 8.21 and 73.46 ± 7.94 respectively. The Ika ethnic group belongs to the microseme group.