Aging of the bony orbit is a major cause of age-related intraorbital fat herniation

We evaluated the relationship between infraorbital fat herniation and age-related changes in the bony orbit and orbital fat density using computed tomography. Two hundred and sixty-five patients were enrolled (60 patients were evaluated for changes in the bony orbit and 205 for changes in orbital fat density). Five measurements using parasagittal sections and 1 measurement using three-dimensional images were obtained. Intraorbital fat herniation length was positively correlated with orbital rim inclination.

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