Entropion
Introduction
Introduction to inversion The palpebral palpebrates the eyelids, especially the position where the gingival margin curls toward the eyeball. When the inside of the file is turned to a certain extent, the eyelashes are also turned to the eyeball. Therefore, varus and trichiasis often exist at the same time. varus can be divided into three categories: 1, congenital varus; 2, ;; 3, scar varus. Congenital palpebral varus is often bilateral, and spasticity and scarring varus can be unilateral. The patient has symptoms such as photophobia, tearing, tingling, and eyelids. Check that the seesaw, especially the rim portion, curls in the direction of the eyeball. Trichiasis rubs the cornea, the corneal epithelium can fall off, and the fluorescein diffusely stains. Such as secondary infection, can develop into corneal ulcers. If it does not heal for a long time, the cornea has new blood vessels and loses transparency, causing vision loss. basic knowledge The proportion of illness: 0.03% Susceptible people: no special people Mode of infection: non-infectious Complications: corneal ulcer
Cause
Cause of varus
Congenital palsy (25%):
More common in infants and young children, more women than men, mostly due to excessive development of the internal ecdysis, rim rim muscle or dysplasia. If the infant is fatter and the bridge of the nose is not full, it can also cause squatting. Congenital palpebral varus is rare, often occurring in the lower jaw, usually accompanied by other abnormalities, such as tarsal dysplasia, small eyeballs, which can coexist with congenital internal or lower ecdysis.
(25%):
It occurs mostly in the lower jaw and is common in the elderly, also known as senile valgus. It is due to the weakness of the inferior condylar muscles, the loosening of the septum and the squat skin, the contraction of the rotator muscles, and the reduction of fat in the elderly and the lack of sufficient support behind the eyelids. If stimulated by various factors (such as conjunctivitis, conjunctival foreign body, keratitis, long-term bandage bandage, etc.), causing the orbicularis oculi muscle, especially the rim muscle of the proximal iliac crest, is paralyzed, resulting in the involution of the gingival margin. varus, known as acute spastic varus.
Scar varus (20%):
Both the upper and lower jaws can occur. Caused by scarring conjunctiva and tarsal scarring, often accompanied by trichiasis. Trachoma is common. In addition, conjunctival burns, conjunctival pemphigus and other diseases can also occur.
Pathogenesis
The common mechanism of various varus varus is caused by the imbalance of the power of the eyelid varus and valgus. Among them, congenital palpebral varus is caused by excessive varus strength due to excessive development of the raccoon muscles or dysplasia of the rim of the iliac crest. Most of the spasticity of the genital hernia occurs in the lower jaw, also known as senile palpitations. It is due to the weakness of the inferior contracture muscle, the relaxation of the septum and the squat skin, the contraction of the rotator muscle, and the reduction of fat in the elderly. The lack of sufficient support behind the eyelid leads to an increase in the relative strength of the rim of the rim. Scar licking and varus can occur, which is caused by scarring of the conjunctiva and tarsal plate.
Prevention
prevention
Pay attention to the use of eyes, work and rest, life is orderly.
Complication
varus complications Complications corneal ulcer
Such as secondary infection, can develop into corneal ulcers. If it does not heal for a long time, the cornea has new blood vessels and loses transparency, causing vision loss.
Symptom
1. Congenital palpebral varus is often bilateral, and spasticity and scarring varus can be unilateral.
2. The patient has symptoms such as photophobia, tearing, tingling, eyelids, etc. The senile palsy can be acutely attacked and the symptoms are exacerbated.
3. Check that the seesaw, especially the rim portion, curls in the direction of the eyeball. Trichiasis rubs the cornea, the corneal epithelium can fall off, and the fluorescein diffusely stains. Such as secondary infection, can develop into corneal ulcers. If it does not heal for a long time, the cornea has new blood vessels and loses transparency, causing vision loss. Scarring of the scar can be seen in the formation of conjunctival scars.
Examine
inversion check
Check that the seesaw, especially the rim portion, curls in the direction of the eyeball. Trichiasis rubs the cornea, the corneal epithelium can fall off, and the fluorescein diffusely stains.
Diagnosis
diagnosis
Depending on the age of the patient, whether there are trachoma, trauma, history of surgery, etc., as well as clinical manifestations, it is easy to make a diagnosis.
