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Accessory Structures of the Eye

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Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...

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Updated: Jun 3, 2025

Author Spotlight: Ex Vivo OCT-Based Multimodal Imaging of Human Donor Eyes for Research into Age-Related Macular Degeneration

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Decoding Periorbital Aging: A Multilayered Analysis of Anatomical Changes.

Pongsak Lohakitsatian¹, Padcha Tunlayadechanont², Thiti Tantitham³

¹Division of Plastic and Maxillofacial Surgery, Department of Surgery, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.

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|January 8, 2025

Summary

This summary is machine-generated.

As people age, lower orbital fat increases and eye globe volume decreases, leading to an enophthalmic appearance. This study details periorbital aging anatomical changes for clinical applications.

Keywords:

Orbital aging Orbital fat Periorbital rejuvenation

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Area of Science:

Anatomy
Aging
Radiology

Background:

Periorbital aging affects bone, fat, and globe.
Previous research focused on fat compartments.
This study comprehensively examines all periorbital components.

Purpose of the Study:

To understand age-related anatomical changes in the periorbital region.
To analyze upper/lower orbital fat, orbital cavity volume, globe volume, and globe position.
To provide a comprehensive understanding of periorbital aging.

Main Methods:

Retrospective study of 118 patients (236 subjects) aged 18-99 years.
Brain MRI using a 3 Tesla MR system.
Radiological analysis of periorbital parameters.

Main Results:

Upper orbital fat remained stable.
Lower orbital fat increased significantly.
Orbital cavity volume expanded due to bony resorption; globe volume decreased, causing enophthalmos.
No vertical globe displacement observed.

Conclusions:

Aging causes multifaceted anatomical changes in the periorbital region.
Findings have clinical implications for periorbital aging treatments.
Insights can guide surgical interventions and improve patient outcomes.