| To understand the causes of and treatments for eyelid hollowness requires a working knowledge of eyelid anatomy. For a video introduction, watch
Anatomy for Blepharoplasty: A Crash Course (11 minutes).
In contrast to all other methods, orbital fat grafting restores missing volume to its natural position (F) behind the orbital septum (E) rather than more superficially.
Cross-Section Through Upper Eyelid
| A |
Eyeball |
Front portion of eye |
| B |
Skin |
Epidermis on surface, dermis below |
| C |
Orbicularis Muscle |
Eyelid closing muscle |
| D |
Tarsus (Tarsal Plate) |
Stiffening element (like cartilage) |
| E |
Orbital Septum |
Layer holding back the orbital fat |
| F |
Orbital Fat |
Fat from the socket extending into lid |
| G |
Inferior Oblique Muscle |
Muscle moving the eyeball |
| H |
Eyelid Retractors |
Structures that help retract the lids |
| I |
Orbital Bone |
Bone surrounding the eye; socket |
| J |
Conjunctiva |
Lining of the back of eyelid and front of eye |
| K |
Periosteum |
Lining of the bone (called 'periorbita' in orbit) |
| L |
Levator |
Main upper lid opening muscle/tendon |

Cross-Section Through Lower Eyelid
Additional diagrams can be found at eyelid and facial anatomy.
An in-depth narrative description can be found in the Insider's Guide to Blepharoplasty: Anatomy.
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