Objective To study the significance of parameters of bony orbit in different age groups of Chinese population in both genders，providing anatomical evidence and strategy for clinical rejuvenation. Methods The data were obtained from 114 adults from Zhejiang province who underwent computed tomographic examinations followed by 3D reconstruction with volume rendering. They were divided into 3 groups: young, mid-age and old-age groups. The measurements of orbital aperture area (S) that including four subareas (S1, S2, S3, S4), up-to-bottom diagonal (L1), and mediumtolateral diagonal (L2) were obtained and calculated by Adobe Photoshop software. The comparison was made among age and gender groups. Results There was significant increasing of up-to-bottom diagonals (L1) with aging in both genders (P<0.05), and a sexual difference appeared in mid-age group. The medium-to-lateral diagonals (L2) for male subjects were longer than female in all age groups(P<0.05). But L2 did not change with aging. The total orbital aperture area of male subjects had no obvious change, while the subarea S1, S2, and S3 significantly increased and S4 decreased with aging. The orbital aperture area of female subjects rose from young to old-age group and the most augmented parts were S3 and S4. There was significant difference between male and female subjects in mid-age group. Conclusion The bony orbital aperture area changed with aging, but the changing pattern varied in male and female subjects. The study and analysis of the morphological change of the orbital aperture is significant to our clinical treatment in cosmetic rejuvenation.
Key words
Facial skeleton measurement /
Aging /
Orbital aperture area /
Image analyze /
Human
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