Blepharoplasty in the East Asian patient

CHAPTER 33 Blepharoplasty in the East Asian patient



*The figures in this chapter represent original artwork prepared by the author.



Introduction


The goal of blepharoplasty in Asians is similar to that for other populations – fresh, youthful and attractive eyes, but Asian eyes for Asian patients. Success in doing surgery on patients of East Asian ancestry hinges to a large degree on our sensitivity to their anatomical uniqueness, and to their goals and aspirations, rather than confusing their desires, with ours as surgeons.


American, European and other non-Asian populations commonly assume “Westernization” to be the desire behind Asian blepharoplasty. Rarely is this the case. Gentle movement, however, in the direction of a developing universal standard of aesthetics is generally an acceptable optionespecially by those whose features are heavy and exaggerated. Some East Asians host a very “slender slit” eyelid configuration, which severely restricts eye exposure, creating an illusion of limited social accessibility, or total inaccessibility. What the vast majority of East Asians seek from aesthetic modification, even those living in the West, is a more open and beautiful, accessible and physically attractive appearance – within an Asian context. The long-term wearability that this offers is far more significant than impulsive gratification (the need for which arises from a passing desire to blend with a non-Asian circle of acquaintances or co-workers, or with an acquired family, either through marriage or adoption).


A major problem here is that surgical “Westernization” really doesn’t work on an Asian face with an Asian skeleton. The outcome typically looks neither Western nor East Asian, and the one who opted for it ends up feeling alienated from both cultures. For this reason it is prudent to discourage loss of one’s ethnic integrity,1 especially doing blepharoplasty, where lid fold creation and placement, and medial epicanthoplasty maneuvers, are essentially irreversible.


Understand also that the aesthetics of Asian blepharoplasty encompass far more than the creation of lid folds on upper eyelids.2



The history of Asian periorbital surgery


Obsession with the different techniques for lid fold creation has dominated the history of Asian periorbital surgery, as well as the bibliographies that deal with the subject. This seems most inappropriate to us, because lid fold creation – as important as it is – is only one piece of a larger “puzzle”. We will start, however, by listing the traditional landmark communications on eyelid invagination (lid fold) techniques, followed by contributions that point to other aspects in aesthetic repair of the Asian periorbital region, which we feel to be of equal importance. Some are our own.




The first description of Asian upper lid surgery done solely for aesthetic purposes was in 1896, in Japan, by Dr. K. Mikamo.3 His technique involved three braided silk sutures, placed transdermally, grasping a small purchase of conjunctiva, and then exiting. The sutures were then ligated and left 2–6 days before removing.


A more well-known early description of the suture technique was published in 1926 by Dr. Kozo Uchida,4 who reported on 1523 patients. He used three sutures of catgut, with knots buried beneath the skin.


Three years later, in 1929, the first incisional technique was reported in Japan, also using catgut. This report appeared in the Japanese Journal of Clinical Ophthalmology, authored by Dr. M. Maruo.5 Many other operative descriptions appeared in Japanese journals between Dr. Maruo’s article and the first “known” English publications on the subject of Asian eyelid surgery.


The increased Western presence in Japan and the Philippine Islands in the aftermath of the World War II, in Korea beginning in the 1950s, and in Southeast Asia thereafter, led to a misunderstanding – both by local surgeons and by Western surgeons – of the desires and intentions of those requesting Asian lid fold procedures. “Westernization” was somehow substituted for a subtle desire to enhance natural Asian beauty in a population that poorly understood the anatomical differences, and to what degree these differences were capable of impacting a person’s life. The lid configuration most desired was one that actually occurred naturally in many East Asian eyes – a small pretarsal segment with the crease running parallel to the lash line centrally and laterally but migrating progressively closer to the lid margin nasally. The smaller epicanthal canopies were also preferred.


The goal distortion was aided by Dr. Ralph Millard’s report, which was the first one on Asian eyelid surgery that was widely distributed in the English language, “Oriental Peregrinations:” with a subsection entitled, “Oriental to Occidental.” It appeared in Plastic and Reconstructive Surgery in 1955.6 In this article Dr. Millard emphasized “Westernization” to a huge English speaking population, while the many earlier Asian surgeons, who also advocated “Westernization”, did so to a far more restricted audience.


The other two early English essays on the subject were by Dr. Sayoc7 in 1954, who sutured the dermis of a pretarsal incision to the anterior aspect of the tarsus, and Dr. Fernandez from Hawaii in 1960, whose publication entitled, “The double eyelid operation in the Oriental in Hawaii”,8 became the world standard for open technique, and remains popular to this day. It was this operation that the senior author first learned, expanding it into his own more precise (“Flowers”) technique, which itself is widely used today.9 In 1993 the senior author worked closely with Dr. Fernandez, re-drawing his illustrations for anatomical clarity and more accurately describing his “landmark” operation, which then appeared in that year’s April issue of Clinics in Plastic Surgery (which Flowers himself edited).10


Credit for the splendid split V-W medial epicanthoplasty (Fig. 33.1) belongs to Dr. Junichi Uchida.11 But his “W” scars were unnecessarily large, and he usually connected the upper limb of his lid fold incision with the upper aspect of the W, which rotated the nasal extension of the lid fold too far above the lid margin, “Westernizing” the eye unnecessarily and well beyond contours that occur naturally in Asians. This operation also encouraged deforming contractures with an incision encircling the medial canthus.


The senior author (Flowers) modified and solved these problems by simply reducing the size of the W, keeping the upper limb of the W well above the medial extent of the lid fold, or lid fold incision, and suturing more meticulously12 (Figs 33.2, 33.3), emphasizing also the meticulous placement and removal of the tiny epicanthoplasty sutures – avoiding wound disruption and secondary healing.





The split V-W medial epicanthoplasty is far superior, less deforming, and has much less scarring than the Mustardé “stick figure”(jumping man) or the many other Z-plasty modification epicanthoplasty.13 Lots of other techniques attempt to solve the prominent medial epicanthal canopy, but the authors found none with benefits that exceed those of the split V-W-plasty.


Creating a lid fold is not the most challenging aspect of Asian lid surgery. Symmetry, grace, accuracy and naturalness are far more important, and more difficult to achieve (Fig. 33.4). These aspects of Asian lid surgery were introduced, and stressed repeatedly over the last 35 years by Flowers.14,15 Minor adjustments were defined, clarified and refined.



Flowers also pointed out the importance of combining frontal lift with lid fold procedures for most females over 30 years of age (Fig. 33.5), or simply substituting a brow elevation operation for lid surgery16 when precise lid folds exist, but are hidden by a droopy brow with overhanging lid tissue17 (Fig. 33.6).




Also emphasized by the senior author in his many graduate courses on Asian lid surgery was the repair of lid ptosis simultaneous with lid fold creation. Precise measuring techniques and adjustments were developed to ensure symmetry of the pretarsal skin segments (most commonly caused by brow asymmetry) – plus the recognition of prominent globes on one, or both sides, and how to lend symmetry to repair in their presence. Flowers also stressed the importance of a new type of lower lid repair that eliminates scleral show and restores lower lid posture and tilt, both in primary and secondary eyelid procedures18 (Fig. 33.7). Fig. 33.7A shows the components of the two-layered canthopexy so effective in restoring youthfulness, and correcting the iatrogenic, developmental, and traumatic deformities.




Anatomy and physical evaluation



Unique anatomical characteristics of East Asian eyelids


Asian uniqueness consists of shallow orbits, minimally or non-cantilevered supraorbital ridges, which spill more skin, orbicularis, septum and eyelid skin onto the lower portion of the upper lid and globe, which often obscures and hides even a well-defined lid fold. Still, 50 to 60% of East Asian teenagers have visible folds at least on the outer aspect of the upper lids.


For years it was thought that supratarsal creases formed as a result of fibers from the aponeurosis continuing into the muscle or perhaps even into the dermis. Although commonly described, there is little evidence that they actually exist as proven entities. Lid creases consistently form precisely at the lowest point of the septo-aponeurotic sling’s descent into the lid.19 This sling is created by the (often delicate) fusion of the orbital septum with the aponeurosis (Fig. 33.8A), while the pre-aponeurosis fat is acting rather like a “ball bearing.”



When the levator muscle retracts (Fig. 33.8B), the sling rolls inward and upward. The orbicularis is, without question, adherent to the orbital septum (with or without the theoretic “fibers”), and this causes the orbicularis to invaginate upon eye opening – with that same adherence as when the same septo-aponeurotic sling rolls inward and upward.


In the same way that the retraction of that caudal extension of the sling hides the lid fold so commonly in Asian eyes, it does the same thing occasionally in non-Asians. Similarly, the minimal extension of the sling into the lid’s caudal aspect that is so common in non-Asians occurs with some frequency in the non-Asian population as well, especially those with thin lids with well-defined, and natural lid folds. The most important difference in the eyes is the cantilevered orbital rims and the deepest set globes in Caucasians.


When there is absence of visible lid folds, raise the brow manually. You will usually discover a hidden fold, often so low as to be inadequate, but sometimes quite well-defined. Many of the lids do indeed invaginate, but not enough to keep upper lid overhang from obstructing vision without a major “help” thrown in by contracting frontalis muscles. This exaggerated frontalis activity results in eyebrows that are held in unusually high postures, especially medially – even in very young East Asians.


This characteristic makes it easy to discern East Asian from non-Asians in a simple sketch by simply placing the eyebrows high above the eyes (Fig. 33.9).



Double eye is the common term used in Asian communities for an upper eyelid showing a dominant crease in its lower aspect, along with it at least a little visible pre-tarsal (or sub-lid-fold) skin, if only in the lateral portion of the eyelid (Fig. 33.10). Not infrequently there will be a well-defined lid fold on one side, while minimal to no crease may be visible on the other.



It is not uncommon for even youthful East Asians, to have such precipitous drops in eyebrow position after upper lid excision and/or invagination (lid fold creation), that they require simultaneous (or deferred) forehead or brow lifts. The condition responsible for this is known as compensated brow ptosis,20 a term devised and popularized by the senior author. Compensated brow ptosis is the very common condition where the resting level of the eyebrows is so ptotic and low that it interferes with unobstructed forward vision, especially laterally, thereby forcing the frontalis muscles into constant contraction in order to see. Because the frontalis usually inserts mainly into the medial brow, the overhang that most needs correcting is usually lateral aspect. The medial brow overcorrects in its attempt to clear the lateral brow overhang. The frontalis muscles are forced to contract for 16–18 hours a day without relaxing.


A well done lateral emphasis frontal lift relieves the frontalis muscle of its need to contract in order to see. Because of this the common result of a well done forehead lift with lateral emphasis are relaxed brows with a lower resting posture medially, where the frontalis muscles with its more medial insertion are no longer forced into the same spastic contraction by the need to provide unobstructed forward vision.


Some patients with lid folds hidden beneath overhanging eyelid and brow skin require only frontal lifts to reclaim, or display for the first time, lovely natural lid creases, or “double eyelids” (Fig. 33.11). The “gift” is received without the swelling and other early postoperative morbidities seen with invasive lid invagination surgery (see also Fig. 33.26).




The desirability of lid folds (“double” eyes)


There is a preference in most Asian cultures for a distinct lid crease, residing one to four millimeters above the lash line, extending slightly beyond the lateral canthus (Fig. 33.12). Rarely ladies prefer it even higher. It replicates the pleasant curvature of the upper lid margin, and in so doing confers an illusion of a larger, longer eye. But the crease’s characteristics must resemble those that occur naturally in Asians, meaning it moves progressively closer to the lid margin along the medial third of the eyelid.



Over the millennia, Asian artists and sculptors have often chosen “double” eyelids to magnify beauty within the objects of their creativity. Even today millions of young and not so young Asians – all potential blepharoplasty patients – spend as much as an hour and a half each morning applying intricate combinations of transparent tape and heavy mascara in ways that force a lid crease to form. Sometimes skin glue or adhesive produces a similar effect, but this method carries with it a rather bizarre lagophthalmos on blinking. The technique persists only because the person hosting the phenomenon is blinded by the “blink” and doesn’t see the deformity.


Sometimes the slender-slit or pseudo-blepharoptotic eye carries with it such delicate grace and submissive beauty, creating such a magnificent work of art – that it begs to remain undisturbed. In other persons a similar lid may suggest a “sinister” aura, which can be extremely restrictive socially and professionally. There is an ancient Chinese adage suggesting that one should never trust a person with slender-slit narrow fissure type eyes. Generally such an Asian characteristics (Fig. 33.13) yield in desirability to the more “open” and “accessible” appearance of a naturally occurring, or skillfully created, “double” eye.



Large medial epicanthal canopies diminish the length of the eye aperture. They also give the eye an illusion of esotropia (cross-eyed look). When the folds are small and delicate, you may leave them, but even they often pull an extra crease into the medial pretarsal part of the eyelid when left unaltered. These situations literally beg for a well done medial epicanthoplasty. (See the technical instructions on medial epicanthoplasty.)



Natural and unnatural Asian lid folds


When lid folds occur naturally in East Asian eyelids, they have physical characteristics which differ from those occurring in other populations.21 In the youthful East Asian a natural fold typically parallels the lid margin in the outer two-thirds of the eyelid, closing towards the eyelid margin as it proceeds nasally. Medially, the crease may either end just above the epicanthal canopy (usually preferable) (Fig. 33.14A), extend to its medial margin (Fig. 33.14B), or dive beneath the epicanthal canopy (Fig. 33.14C). Sometimes, in Asians with prominent noses, and occasionally in those without, there may be no epicanthal canopy or epicanthus at all.



In Western and other non-Asian eyes the lid folds commonly parallel the lid margins all the way across the eyelid, but often move further away from the lid margins nasally, exposing more pretarsal skin. The latter rarely occur naturally on youthful East Asians, but sometimes the “crease”, especially when very close to the Asian lid margin, will parallel the lash line (Fig. 33.15A). The one situation where we see Asian lids with taller pre-tarsal segments nasally is after bad surgery or where there is a natural lid crease with a once fully visualized pretarsal component, but which is no longer exposed laterally (because of years of progressive scalp and forehead stretching). This causes an increased response activity in the frontalis muscle which usually inserts predominantly into the medial brow (Fig. 33.16).




In its attempt to raise lateral brow overhang, because of its medial brow insertion, it must overcorrect medially, and in so doing exposes a lot more pretarsal skin nasally than laterally (Fig. 33.15B). With overhang decreasing the visualized lateral pretarsal skin, an unnatural un-Asian appearance evolves, which also has an older appearance, in an area that could be a focus of attractiveness. Figure 33.17 shows a modest deformity of this type. Manual elevation of the left brow emphasizes how correction lies not in an eyelid operation (which would only worsen the condition), but with lateral brow position restoration, which cancels the muscle’s need to overcorrect, it frees the medial brow to drop into a more natural resting position.



Mar 4, 2016 | Posted by in Aesthetic plastic surgery | Comments Off on Blepharoplasty in the East Asian patient

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