The drooping of the upper eyelid seems to be an unusual situation, but it makes people look sleepy. The next upper eyelid displacement is the abnormal decline of the edge position of the upper eyelid eyeliner when the eyes are looking straight ... Overview of ptosis correction ptosis seems to be an uncommon situation, but it makes people look sleepy. The next upper eyelid displacement is the abnormal drop of the edge position of the upper eyelid eyeliner when the eyes are looking straight. Ptosis is an independent symptom, and many people are easily influenced by other emotions. Confusion, for example, the upper eyelid of the elderly is slightly loose, or the eyelid of the other eye is pulled up excessively for other reasons, resulting in the illusion that the original eye seems to have signs of ptosis. Aesthetic standard of eyes: the length of eyelid fissure of adult eyes is 30-40 mm, which is about one fifth of its width. The distance between the inner canthus of both eyes is 30-60 mm. The upper and lower diameter of blepharoplasty is 10- 12.5 mm, and the distance from the upper eyelid to the eyebrow is15-20 mm. The eyelid angle of the inner canthus is 48-55, and that of the outer canthus is 60-70, connecting the inner canthus. When the eyes are looking straight, the upper eyelid covers the cornea by 2mm, and the edge of the lower eyelid contacts the edge of the lower cornea. The highest point of the upper eyelid plate is 8- 10 mm, and the lower eyelid plate is 5 mm. blepharoptosis correction is an operation to correct congenital or acquired blepharoptosis caused by various reasons. Overview of ptosis correction: ptosis, commonly known as "big eyelid", is due to the dysfunction of levator palpebrae superioris, which makes the upper eyelid (upper eyelid) cover part or all of the pupils. When it is serious, it is often in a state of looking up at the sky. Usually divided into two categories: one is congenital, mostly caused by hypoplasia or defect of levator palpebrae superioris, or nerve defect that dominates levator palpebrae superioris. The other is acquired, and its causes are traumatic, neurogenic, myogenic and mechanical. Indications for ptosis correction: 1. Shortening levator palpebrae superioris: It is suitable for bilateral or unilateral congenital ptosis, and the levator palpebrae superioris still has some functions (the muscle strength of levator palpebrae superioris is more than 5mm). It can also be used for aponeurosis ptosis caused by acquired. 2. Frontal muscle lifting: it is suitable for patients with good frontalis muscle function and congenital or acquired ptosis, especially for severe ptosis, and can also be used for cases where other surgical methods fail to correct ptosis. Correction of blepharoptosis: The common method to treat blepharoptosis is to shorten the levator palpebrae superioris and suspend the frontalis muscle flap downward. Levator levator muscle contraction method can be divided into two methods: transconjunctival incision (internal incision method) and percutaneous incision (external incision method) or conjunctival skin combined incision. It is suitable for bilateral or unilateral mild and moderate congenital ptosis, and the levator palpebrae superioris muscle still has some functions. It can also be used for aponeurosis ptosis caused by acquired. This kind of operation keeps the original walking and moving direction of muscles, which is more in line with the physiological requirements of the eyes and the postoperative effect is ideal. However, this method is limited to mild and moderate ptosis with partial function of levator palpebrae superioris. If the function of levator palpebrae superioris is poor, shortening levator palpebrae superioris or moving forward with muscle margin may lead to unsatisfactory surgical effect. If the function of levator palpebrae superioris is completely lost, it will be more difficult to work. Frontal muscle flap method: There are two kinds of operation methods: one is to connect the tarsal plate with frontalis muscle with various materials or tissues, and indirectly correct ptosis with frontalis muscle strength. At present, the materials and tissues used are autologous fascia lata, skin, muscle, allogenic dura mater, allogenic sclera, silk thread, silver thread, stainless steel thread and silicone rubber strip. Among them, autologous fascia lata has a good effect, and it will not be rejected and prolonged after implantation, and the height of eyelid fissure and eyelid shape are stable after operation. The disadvantage is that patients need to make more openings in their thighs, which is not easy to be accepted by patients, and patients need to use frontalis muscle to contract and lift eyebrows to split eyelids, so patients have different degrees of eyebrow lifting after surgery. It can also be pulled with allogenic dura mater or allogenic sclera, but after a few years, ptosis will slowly droop, or some eyelids will be deformed, and a few will lose their efficacy because of early absorption or fibrosis of implanted tissues. Another method is to directly make a frontalis muscle flap with frontalis muscle, move it down and sew it with the upper eyelid plate, and directly lift the eyelid with frontalis muscle strength to correct ptosis, which is called direct suspension of frontalis muscle flap. This method does not need to work through intermediate links, avoiding the shortcomings of indirect use of frontalis muscle. It is suitable for frontalis muscle with good function, congenital or acquired ptosis, especially for severe ptosis, and can also be used for cases where other surgical methods fail to correct ptosis. Because the operation is mobile, the patient can not only open his eyes but also close his eyes after treatment. In addition, the deep wrinkles on the forehead can disappear naturally after the operation, making the forehead look wide and flat, and patients can also get double eyelids after the operation. The characteristics of ptosis after correction: natural appearance, no scar hidden; Contraindications for ptosis correction: (1) patients with severe liver, kidney, heart and brain diseases, pregnant women and patients with severe blood diseases. (2) The woman is in the menstrual period. (3) People with mental illness, psychological disorder, or excessive or unrealistic requirements. (4) those with obvious scar constitution. (5) Patients with skin inflammation at the surgical site. Postoperative care: (1) It is forbidden to touch the wound with hands within seven days after operation. Avoid water on the surgical incision. (2) Ensure that the surgical site is clean and prevent infection. (3) Use antibiotics for 3-5 days to prevent infection. Apply antibiotic eye ointment to the incision. (4) After operation, the eyes were bandaged for 3 days, the forehead was bandaged for 6 days, and the stitches were removed for 7 days. (5) The affected eye has ptosis after operation. In order to prevent exposure keratitis, antibiotic eye drops can be used during the day and eye ointment can be applied during sleep to protect the cornea.