The difference between the inner and outer canthus

The inner canthus and the outer canthus are different in position, and are also two different options for cosmetic surgery. The inner canthus is to open the skin in front of the inner canthus to reveal the structure of the canthus, while the outer canthus is the outer canthus, which is the eye frame we see. Once opened, it is difficult to restore, and it will destroy the special structure of the canthus. You can learn about it.

The difference between inner canthus opening and outer canthus opening pictures and basic concepts

Open the inner canthus

The procedures for girls to have an epicanthoplasty and an lateral canthoplasty are completely different. The most important difference between the two is reflected in the basic concept. First of all, opening the inner canthus does not mean truly opening the inner canthus. It just opens the epicanthus that blocks the inner canthus to reveal the inner canthus structure.

Canthoplasty

When it comes to the basic concept of canthoplasty, it means actually opening the outer canthus. This is a special and important physiological structure, which is difficult to recover once opened. We can even say that canthoplasty surgery is bound to destroy the special structure of the outer canthus. Therefore, unless the patient has congenital microphthalmia or the palpebral fissure has become smaller due to burns and the patient's palpebral fissure is of normal size, doctors generally will not recommend canthoplasty surgery.

The difference between inner canthus opening and outer canthus opening, and the operation methods are different

Open the inner canthus

The difference between inner canthus enlargement surgery and outer canthus enlargement surgery is also reflected in the operation method. At present, the methods of opening the inner canthus that are more commonly used in clinical practice include the "VY" suture method, the "Z" molding method and the four-flap method. The former is suitable for mild epicanthus, and the latter is suitable for all types of epicanthus. The effect is good and there are no obvious scars after the operation. It is an ideal surgical procedure. At the same time, it can also integrate double eyelid positioning and minimally invasive fat removal to change the overall shape of the eyes and achieve the effect of improving the beauty of the eyes in many aspects.

Canthoplasty

The operation methods of canthoplasty are different from those of inner canthoplasty. Canthoplasty mainly uses surgery to cut the outer mucosa of the posterior canthus, lengthen the horizontal distance of the eye, make the eye shape become slender and beautiful, and turn small eyes into charming big eyes. The reason why there are fewer ways to perform canthoplasty than inner canthoplasty is that the number of people who undergo this surgery is much smaller than the number of people who have their inner canthus opened. In addition, responsible doctors will not recommend this surgery too often.

The difference between inner canthus opening and outer canthus opening, and the different postoperative effects

Open the inner canthus

For those who are suitable for inner canthus opening surgery, their eyes will be more beautiful after the surgery. Through the inner canthus opening surgery, their eyes will become more lively. It should be noted that this effect can only be achieved if the inner canthoplasty is performed by a professional and experienced doctor in a regular hospital. However, there may be disadvantages after inner canthus opening: scars are easily left at the inner canthus, and if the operation is performed by an experienced doctor, the scars can be better hidden.

Canthoplasty

The disadvantages of canthoplasty are as follows: 1. Even if it can be enlarged, this part does not have the three-dimensional structure of the eyelid margin and eyelashes, and looks unnatural. 2. Due to the limitation of orbital bones, the effect of enlarging will be limited to a certain extent. 3. The conjunctiva is thin and difficult to operate, and is prone to retraction and adhesion. 4. Conjunctival ectropion is likely to occur. Therefore, many people are not satisfied with the results after canthoplasty surgery. The main reason is that there is no need to do canthoplasty in the first place. After the surgery, not only will the original beauty of the three-part and five-eyes face be destroyed, but the eyes will also make you look weird.

The difference between inner canthus opening and outer canthus opening and their suitability for different groups of people

Open the inner canthus

Generally speaking, inner canthus opening is suitable for those with severe epicanthus or those with deformities in adjacent parts, while simple mild epicanthus does not cause any discomfort and does not require treatment. Opening the inner canthus can adjust the problem of the wide distance between the eyes of the patient, making the distance between the eyes look more coordinated and in line with the aesthetic requirements of the "five eyes".

Canthoplasty

The range of people who are suitable for canthoplasty is actually very small. Canthoplasty surgery is only suitable for patients with congenital microphthalmia and people whose palpebral fissure has become smaller due to external injuries such as burns. Only these groups of people can truly achieve the effectiveness of canthoplasty surgery. However, if a person with a normal-sized palpebral fissure undergoes canthoplasty, the outer canthus, which is the mucous membrane tissue, will grow quickly, resulting in almost no actual effect of enlarging the eyes.

There are common principles for both epicanthoplasty and lateral canthoplasty

Although there are four main differences between canthoplasty and lateral canthoplasty, there is a common criterion for whether or not a canthoplasty procedure can be performed. Medical cosmetic surgery is generally based on the traditional Chinese aesthetics of the human body's three-part and five-eyes concept. Basically, if the eyes already meet the three-part and five-eyes concept, there is no need to open the inner or outer canthus.

The three courts and five eyes refer to the width of the palpebral fissure, the distance between the inner canthus, and the distance from the outer canthus to the ear, which should be roughly equal, and the width of the palpebral fissure is equivalent to the width of the nose wing. The beautiful corners of the eyes should roughly meet the following data:

(1) The distance between the inner canthus of the two eyes is about 33.6mm for men and about 32.8mm for women

(2) The distance between the outer canthi of the two eyes is about 90.7mm for men and about 86.7mm for women

(3) The medial canthal palpebral fissure angle is 45°, and the lateral canthal palpebral fissure angle is 60°-70°