2) The width of nasal alar on both sides is almost the same as the distance between inner canthus and the width of palpebral fissure.
3) The height of the bridge of the nose has obvious influence on the medial canthus spacing and the formation of epicanthus. If the bridge of the nose is high, the medial canthus spacing is narrow, and the epicanthus is not obvious. The upper eyelid is wide, and its shape and range of motion change obviously, which determines the overall characteristics of eyelid appearance to a certain extent and has great influence on eye shape and beauty (that is, the upper eyelid determines the whole eye shape, why is the upper eyelid swollen or not?
There are two horizontal arc grooves on the skin surface of the upper eyelid. The upper one is called orbital sulcus, which becomes shallow or inconspicuous when eyes are closed, and becomes deep and conspicuous when eyes are opened. The yellow race is shallow, while the white race is deep and obvious, which is related to the depth of eye socket and the height of nasal bone and orbital bone in Europe and America. The inferior sulcus is 5~6mm away from the eyelid margin, which is called the upper eyelid sulcus. The upper eyelid with this wrinkle is double eyelid shape, and the upper eyelid without this wrinkle is single eyelid shape.
The upper eyelid morphology can be divided into four types according to whether there are wrinkles, namely, single eyelid type, double eyelid type (double eyelid ectropion type), entropion type (double eyelid entropion type) and multi-wrinkle type. Single eyelid can be divided into normal type, weak type (skin relaxation type) and super-force type according to the tension and relaxation degree of upper eyelid skin and the amount of subcutaneous fat.
Due to the action of levator palpebrae superioris, the upper eyelid can move up and down flexibly, and its range of motion is about10 mm. When a normal person looks up with his eyes open, the upper eyelid margin is just 2mm below the corneal margin. When they close their eyes, the upper eyelid covers all the exposed parts of the eyelid cleft. The cornea is hidden behind the upper eyelid and is not exposed. If levator palpebrae superioris dysfunction leads to ptosis, it will affect the beauty of eyes. (It is rarely mentioned that we should pay attention to the problem of tilt)
1) blepharoptosis height: the height of blepharoptosis refers to the distance between the upper and lower eyelid margins when the eyes look straight ahead, with an average of 7 ~ 12 mm, which is generally divided into three types: ① narrow blepharoptosis: narrow blepharoptosis is more common in Asian yellow people; ② Medium-sized: common in Caucasians in Europe; Height and width type: the characteristics of black people.
2) Width of ptosis: refers to the horizontal distance between the inner canthus and the outer canthus of ptosis, with an average of 25~33mm, and the ratio of width to face width is beautiful.
3) The inclination of ptosis: refers to the position of inner canthus and outer canthus, which are generally divided into three types: ① horizontal type: inner canthus and outer canthus are on the same horizontal line; (2) Extroversion type: the inner canthus angle is higher than the outer canthus angle (also known as the inner high and outer low type); ③ Oblique type: the inner canthus angle is opposite to the outer canthus angle (also called inner low and outer high type).
The included angle between the inner canthus and the outer canthus is about 10, which is slightly 2~3mm higher than the inner canthus, which is beautiful.
There are obvious racial differences in the tendency of ptosis. The outer canthus of Caucasians is slightly higher than the inner canthus, while the outer canthus of Mongolians is obviously higher than the inner canthus, which is related to the more epicanthus of Mongolians. According to statistics, horizontal blepharoptosis ranks first, accounting for 82.06%, followed by introversion, accounting for 13.20.
The height and width of ptosis affect the exposure of eyeball and cornea. Normal people can see the cornea (and its inner iris and pupil), the triangular sclera inside and outside the cornea, the conjunctival semilunar fold and the lacrimal fossa in the ptosis area. The eyeball with high width is exposed more, larger, but smaller. Corneal exposure rate is about 50%~80%. Generally, blepharoptosis is beautiful in shape, with a moderate height, the ratio of blepharoptosis width to facial width conforms to five eyes, the outer canthus angle is horizontal or slightly higher than the inner canthus angle, the inner canthus angle is slightly obtuse and round, and the outer canthus angle is acute. ) standard eye: also called almond eye, eye.
2) Phoenix Eye: the inner canthus angle is larger than the outer canthus angle, and the foreign capital is slightly higher than the inner canthus angle. Eyelid fissure is slender, narrow inside and wide outside, and develops in an arc shape. Dark circles and white eyes are moderately exposed, and the eyelid skin is thin and rich in oriental sentiment, with exquisite and lovely shape. Both men and women are one of the criteria for beautiful eyes.
3) Slender eyes: also known as long eyes, with small palpebral fissure, small curvature of eyelid margin, relatively less dark circles and white eyes, giving people a sense of lack of eyes and often appearing listless.
4) Round eyes: also known as litchi eyes and big eyes. The eyelid cleft is wide and wide, and the eyelid margin is round, revealing black eyes and white eyes, making the eyes round. It gives people a bright and clever feeling, but it is relatively lacking in exquisiteness.
5) squint: the eyelid fissure is small and narrow, the inner and outer canthus angles are small, most of the dark circles and whites of eyes are blocked, and the eyes are small. They look gentle, but they are afraid of light. They lack the appearance and charm of their eyes.
6) Eye lifting: also known as strabismus. The outer canthus angle is higher than the inner canthus angle, the axial inclination of the eye is too high, and the outer canthus angle protrudes upward. Seen from both sides, it looks like an inverted figure of eight. It is sensitive and witty, with sharp eyes, but it gives the impression of being cold and harsh.
7) Vertical eye: also known as lower squint. Contrary to the vertical eye, the outer canthus angle is lower than the inner canthus angle, and the eye axis is inclined downward, forming an eye shape with the outer canthus inclined downward. Seen from both sides, it looks like a figure of eight. It looks innocent and lovely, but it gives people a gloomy feeling, too old.
8) Triangular eye: Generally, the angle of the corner of the eye is normal, mainly due to the drooping of the middle and outer canthus of the upper eyelid skin, which makes the eye crack into an approximate triangle, which is common in middle-aged and elderly people, but rare.
9) Deep eye socket: The main feature is that the upper eyelid is not full, which is common in westerners. Eyes look neat and stretched, there is a sense of maturity when young, and middle-aged and elderly people feel tired and gaunt.
10) Eyebleb: Also known as goldfish eyes, the eyelid skin is thick, and the subcutaneous fat is bloated and protruding, which weakens the three-dimensional sense between the eyebrow arch, the bridge of the nose and the eye socket, giving people a feeling of inflexibility, dullness and poor expression.
1 1) Telepathy: The main feature is that the distance between the inner canthus is too wide, and the eyes are too far apart, which makes the face wide, losing the beauty of proportion and appearing too dull.
12) Close-eye: The main features are that the distance between the inner canthus is too narrow, the eyes are too close, the five senses are folded, the three-dimensional sense is enhanced, serious and nervous, and there is excessive depression.
13) exophthalmos: the eyelid fissure is too wide, the eyeball is large, protruding forward, the black eyeball is completely exposed, and the exposure range of the white eyeball is also large. If there is white eyeball exposure around the black eyeball, it is commonly known as four eyes, which is a pathological manifestation.
14) Small round eyes: The main feature is that the height and width of the eyelid fissure are short, but the proportion is moderate. The edge of eyelid is small arc, the corner of eye is slightly stiff, dark circles and white eyes are less exposed, and the eyeball is smaller. The whole eye shape is small and round, which affects the coordination of the whole face shape and gives people a clever and persistent impression, but it lacks expression and charm. It is generally believed that beautiful eyes should be able to express psychological activities and emotional changes. Small eyes, swollen eyes and drooping eyes are not good-looking. The shapes of eyes vary widely, but the sizes of eyeballs are basically the same. The important factors that determine the appearance of eyes are the opening and closing degree of upper eyelid and lower eyelid, the shapes of inner and outer corners of eyes, the number and shade of eyebrows, the length and shape of eyelashes, and the ratio of eyes to face.
Three stops and five eyes: the length of the face is divided into three equal parts, the upper area is from the hairline of the forehead to the middle point of the brow, the middle area is from the middle point of the brow to the bottom of the alar, and the lower area is from the bottom of the alar to the mandibular margin, and the heights of the three areas should be equal; At the eye level, the width of human face is divided into five eye distances, namely, the width of eyes (one left and one right), the distance between eyes and the width from outer canthus to ear (one left and one right). The front of the face can be vertically divided into four equal parts, that is, from the midline of the face to the left and right, through the lateral edge of sclera and the lateral boundary of the face.
According to statistics, the width of an adult's eyes is 30~34mm, the distance between the inner canthus of both eyes is 30~36mm, the upper and lower eyelid diameter is 10~ 12.5mm, and the distance between the upper eyelid edge and the eyebrow is 15~20mm, that is, the height of the upper eyelid.
The outer canthus is slightly higher than the inner canthus, and the eyelid angle of the inner canthus is 48. ~55. The eyelid angle of the outer corner of the eye is 60. ~70. The included angle between the inner canthus and the outer canthus and the horizontal line is about 10.
Corneal exposure rate is 50%~80%. When the eyes look straight ahead, the upper eyelid covers the cornea by about 2mm, and the lower eyelid edge is tangent to the lower edge of the cornea. The diameter of cornea is 1 1~ 13.6mm, with an average of about12 mm.
The highest point of the upper eyelid is located at the junction of middle and inner 1/3 of the upper eyelid margin, and the lowest point of the lower eyelid is located at the junction of outer and inner 1/3 of the eyelid margin. The highest point of the upper eyelid plate is about 8~ 10mm, and the lower eyelid plate is 5 mm.