epicanthus
Introduction
Introduction of inner skin The internal suede is one of the characteristics of the oriental eye, which is a forward-down or anterior-posterior sacral skin fold in front of the medial malleolus. The internal fold of the Mongolianfold is in the eyes of the human eye. The upper part of the lower edge of the upper eyelid has a pleat of different height parallel to the lower edge (called pleated, German Deckfalte), which is often independent of the skin on its inner side or adjacent to it. This pleat is born and slanted down to the nose that originally covered the inner corner of the eye. Therefore, one or all of the tears in the corner of the eye are covered according to the degree of development of the pleat. This special pleat is called the inner scalp. The inner skin is divided into primary and secondary types. The primary internal ecdysis is clinically classified into three types according to the movement of the internal sac, ie, the upper sputum type, the internal sacral type, and the inverted type. In the primary internal ecdysis, if accompanied by ptosis, small cleft palate and a marked widening of the medial malleolus, it is called orbital syndrome. At the same time, the eyebrow deformity is called the eyebrow syndrome. No other abnormalities are simple internal molting. In addition, patients with internal ecdysis are often accompanied by trichiasis and even eyebrow deformities. Secondary internal ecdysis is caused by mechanical scars, burns, infections and other local scar contractures, mostly unilateral, often accompanied by adjacent tissue damage. basic knowledge The proportion of illness: 0.003%--0.005% Susceptible people: no special people Mode of infection: non-infectious Complications: trichiasis
Cause
Endothelium
Genetic (60%):
Congenital internal ecdysis is a dominant genetic disease, usually bilateral, with a family genetic predisposition. Those who are not accompanied by other deformities of the eye are called simple internal ecdysis; some congenital internal ecdysis may be associated with ptosis, small cleft palate, and eyebrow deformity.
Trauma (20%):
Acquired internal ecdysis is caused by trauma, such as burns, burns, etc., mostly unilateral, often accompanied by adjacent tissue damage, such as tear canal injury, gingival margin injury.
Prevention
Internal suede prevention
1. Adjust daily life and workload, and regularly carry out activities and exercise to avoid fatigue.
2. Maintain emotional stability and avoid emotional excitement and tension.
3. Keep the stool smooth, avoid using stools, eat more fruits and high-fiber foods.
Complication
Internal cutaneous complication Complications
In the primary internal ecdysis, if accompanied by ptosis, small cleft palate and a marked widening of the medial malleolus, it is called orbital syndrome. At the same time, the eyebrow deformity is called the eyebrow syndrome. No other abnormalities are simple internal molting. In addition, patients with internal ecdysis are often accompanied by trichiasis and even eyebrow deformities. Secondary internal ecdysis is caused by mechanical scars, burns, infections and other local scar contractures, mostly unilateral, often accompanied by adjacent tissue damage.
Symptom
Internal suede symptoms Common symptoms Eyelid drooping eyelids Hypertrophy Eye cracks Small eyelid deformity
In the clinical, internal suede can be divided into simple internal molting and complex internal molting. The former is only internal suede, the eye cracks are slightly reduced, single or internal double, and no other malformations; the latter is accompanied by a marked reduction in eye cracks, thickening of the eyelid skin and subcutaneous tissue, and poor development of the orbicularis muscle The tarsal plate is short and narrow, and there is often a ptosis (the eyes are not big).
Examine
Internal suede examination
Perform an ophthalmologic examination.
First, the central vision check.
Second, the visual field and dark spot inspection method.
Third, deep-path perception: depth perception (depthperception), also known as deep-path perception, is the ability to use the eye to distinguish the relative position of the object's spatial orientation, depth, convexity and concave. For a lot of work, such as working at heights, especially for pilots, depth perception is one of the important projects.
Diagnosis
Diagnosis of internal ecdysis
diagnosis
Diagnosis can be made based on the results of the examination.
Differential diagnosis
In the clinical, internal suede can be divided into simple internal molting and complex internal molting. The former is only internal suede, the eye cracks are slightly reduced, single or internal double, and no other malformations; the latter is accompanied by a marked reduction in eye cracks, thickening of the eyelid skin and subcutaneous tissue, and poor development of the orbicularis muscle The tarsal plate is short and narrow, and there is often a ptosis (the eyes are not big).
