Upper Blepharoplasty in the Asian Patient

Published on 14/06/2015 by admin

Filed under Surgery

Last modified 14/06/2015

Print this page

rate 1 star rate 2 star rate 3 star rate 4 star rate 5 star
Your rating: none, Average: 0 (0 votes)

This article have been viewed 2956 times

CHAPTER 9 Upper Blepharoplasty in the Asian Patient

Because the anatomy of the Asian eyelid differs from that of the Caucasian eyelid, I believe that a separate chapter emphasizing the difference is important. In the first edition, I showed how to westernize, or occidentalize, the Asian appearance by constructing an eyelid crease similar to the technique used in Caucasians. It later became apparent that most Asians would like to enhance their appearance by having a crease that conforms with Asian features, and this chapter was added.

William Chen describes the many variations in upper eyelid creases. He emphasizes that many Asians have what he refers to as a nasal tapering type of crease, in which the crease converges and tapers to the eyelid margin nasally, while other Asians possess a crease that is parallel to the eyelid margin. With a nasally tapered crease, it is important that the reconstructed upper eyelid crease extends to this inside nasal fold. Forming a parallel crease nasally in such a patient leads to a duplicated nasal crease and, frequently, to an unhappy patient.

Dr Chen also emphasizes removing a small amount of preaponeurotic fat and pretarsal tissue. He creates an eyelid crease by suturing skin to the levator aponeurosis along the superior tarsal border, at 6.5–7.5 mm above the eyelid margin (10–11 mm in a Caucasian). I vary my technique slightly by excising the superior pretarsal tissues and by passing sutures through tarsus and then the levator aponeurosis and skin. I also have the patient sit up on the operating table to make sure that the creases are forming in the desired positions.

Allen M. Putterman

A review of the medical literature published in English reveals more than 50 major articles describing upper eyelid surgery in Asians. Most of the articles describe the technique of construction of an upper eyelid crease in a patient without the crease. Authors of some of the earlier reports aimed to westernize the patient’s appearance, whereas other authors insisted on creating a crease alone and preserving the Asian features.

In this chapter, before I review the steps of upper eyelid blepharoplasty in Asians, I explain the basic difference between Asians and Caucasians with respect to ethnic differences in eyelid creases, the anatomy of the face and upper eyelids, and the psychological and aesthetic needs of the patient.

Anatomy

Upper eyelids

The difference between the Asian and Caucasian eyelid lies at the lower point of fusion of the orbital septum with the levator aponeurosis.1 In Caucasians (Fig. 9-1), the orbital septum fuses with the levator aponeurosis at approximately 8–10 mm above the superior tarsal border, limiting the downward extent of the preapo-neurotic fat pads while allowing the terminal inter-digitations of the aponeurosis to insert toward the subdermal surface of the pretarsal upper eyelid skin, starting along the superior tarsal border and heading inferiorly. As a result, when the levator muscle contracts and pulls the upper eyelid up, the skin forms a crease above the superior tarsal border and the skin above the crease forms the fold.

In Asians who do not have this crease (Fig. 9-2), as suggested by the anatomic studies of Doxanas and Anderson,1 the point of attachment of the orbital septum to the levator aponeurosis is lower, frequently as low as the superior tarsal border. This position allows the preaponeurotic fat pads to be present at a lower point on the upper eyelid, giving it a fuller appearance, and is found conjointly with a lack of attachment of the terminal strands of the levator aponeurosis from attaching to the subdermal surface of the pretarsal upper eyelid skin. The result is an apparently puffier ‘single eyelid’ without a crease (Fig. 9-3A).

In terms of fat distribution and compartments, Uchida2 first described the presence of four areas of fat pads in Asian eyelids:

Face

Onizuka and Iwanami3 note that Asians, particularly the Japanese, have a flat face and a head shape that is mesocephalic. The eyes tend not to be recessed deep in the orbit. These authors also find the lateral canthus to be 10 degrees superior to the medial canthus. They believe that creating an upper eyelid crease and removing any upper lid hooding would make the palpebral fissure appear wider and more open, which is aesthetically pleasing. I do not believe that all Asians have a lateral canthus 10 degrees above the medial canthus; however, certainly some of the other observations by these authors may be true.

Eyelid crease

The configuration of the crease in the upper eyelids of Asians varies greatly. As I describe in other publications,46 the crease may be absent in one eye (see Fig. 9-3A) and present in the other. It may be continuous (see Fig. 9-3B) or discontinuous (see Fig. 9-3C). The crease may be partial or incomplete (usually present from the medial canthal angle and then fading laterally) (see Fig. 9-3D), and there may be multiple creases on an eyelid (see Fig. 9-3E).

Individuals who have a continuously formed eyelid crease may have either the inside-fold (nasal tapering) type of crease (see Fig. 9-3F) or a crease that is more parallel to the ciliary margin from the medial canthus to the lateral canthus (see Fig. 9-3G). With the inside-fold type, the crease may start from the medial canthal angle and gently flare away from the eyelid margin as it reaches the lateral canthal region (lateral flare) (see Fig. 9-3F

Buy Membership for Surgery Category to continue reading. Learn more here