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Cataract is a well-known disease. The inside of the eyeball (anterior part of the eyeball) is a discus-like crystal clear crystal, which is about 9 mm in diameter and more than 4 mm thick. The lens is surrounded by a transparent capsule, which is filled with a transparent crystal cortex.
Lenses can become cloudy and white for a variety of reasons, such as trauma, other eye diseases, systemic diseases (such as diabetes), and aging, the most common of which is senile cataracts. Objectively speaking, the incidence of senile cataract is 100%, but some people are early and some are late. After the age of 50, most of the lens cortex has such as increased density, slight opacity and other early and early signs of cataract, at this time can not affect vision, with age, the opacity aggravates, that is, more and more white, then visual impairment, blurred vision, blurred vision and so on will inevitably follow.
Therefore, the name of the three words "cataract" is very appropriate.
Protection. Diet.
Drugs. Surgery.
Prospect. Protection.
Why does the lens cortex become cloudy and white and become cataracts? As far as the current medical knowledge is concerned, it is still a topic to be explored. Prevention is important until the problem is completely solved, and it is currently recognized that ultraviolet exposure, poor diet, and drug abuse can cause cataracts to come in early or worsen.
The ultraviolet and infrared rays in the sunlight can cause the lens cortex of the human eye to become cataracts, so it is no wonder that there are many more cataract patients in the highlands and equatorial regions than in other regions. Because they have been exposed to prolonged sunlight, they are naturally more exposed to UV damage.
Wearing a suitable pair of sunglasses (sunglasses) when going out in summer does have a certain protective effect. Brown lenses filter out ultraviolet rays, green lenses filter out infrared rays, and gray lenses filter out all visible light evenly and equally. Grey, green and brown colours are used for travel, and the scenery seen through these lenses is pleasant, with little color variation, and does not cause color vision interference.
Don't think that the darker the sunglasses, the better and more chic, but you don't know that the darker the sunglasses force the pupils to dilate, which in turn aggravates light damage and other discomforts. Chic is obviously more meaningful than protective. The protective sunglasses worn by the furnace workers can be said to have nothing to do with the word "chic".
To prevent eye trauma, especially in children, be careful with knives and sharp objects! If you have other eye diseases, it is important to prevent cataracts as soon as possible. Early pregnant women should be cautious in taking medicine for colds, and nutrition should also be paid attention to, so as not to give birth to a congenital cataract baby.
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1 Pinyin 2 English references.
3 Classification of diseases.
4 Overview of the disease.
5 Disease description.
6 Signs and symptoms.
7 Related Sources.
Attached: 1 **Total cataract acupuncture points.
quán bái nèi zhàng
tota1 cataract
Ophthalmology. Total cataract: the lens is completely cloudy at birth, because the lens epithelium and stroma have been destroyed in infancy, there will be no new fiber growth after birth, and sometimes the cataract content is all liquefied, and it can be absorbed over time to form membranous cataract.
Autosomal dominant inheritance is the most common, a few are recessive, and a very few are sex-linked recessive inheritance.
It is caused by damage to the lens fibers in the middle and late stages of its development. The lens is completely or nearly completely cloudy, and sometimes the capsule is post-enlarged, calcified, and the cortex is concentrated. It can occur at birth, or develop gradually after birth, and is completely cloudy within 1 year of age.
Because the lens epithelium and stroma have been destroyed during the fetal period, no new fibers grow after birth. It usually occurs in both eyes. Visual impairment is significant.
Ophthalmology, 6th ed.
Tear acupuncture, the sun can prick the bleeding, 1 time a day. After 1 7 times**all**. Single piercing eye, **153 cases, with good efficacy. **。
Tear hole acupuncture, the sun can prick bleeding, 1 time a day. After 1 7 times**all**. Single piercing eye, **153 cases, with good efficacy. **。
Tear cavity acupuncture, how can the sun prick bleeding, 1 time a day. After 1 7 times**all**. The single stinging eye, **153 cases, with good curative effect. **。
Eye acupuncture, the sun can prick bleeding, 1 time a day. After 1 7 times**all**. Single piercing eye, **153 cases, with good efficacy. **。Sun.
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Can you be specific? Where is the white dot located? Is the eyesight loss of the elderly obvious in the past two years?
If the cataract is not very serious, it is not obvious that there is an abnormality in the appearance, it is a state of clouding of the lens caused by various reasons, which affects the vision, and it is more common in the elderly, and surgery can be done. It is recommended that you go to the hospital to see a doctor for a detailed examination.
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Such symptoms are obviously symptoms of the early stage of cataracts, but you don't have to worry too much, for cataracts, there are surgeries** and drugs**, but surgery ** has great risks and is very expensive. It is recommended to use drugs **, you can use eye drops like Shapu Aisi, many people with cataracts are using it, and the reputation is good. Usually eat more fruits and vegetables with more vitamins.
Like spinach, Chinese cabbage, apples. These foods contain more vitamins. Eating more can increase the body's immunity.
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A cataract is a cloudy lens that causes vision loss. There is currently no good for cataracts. The main way to do this is to replace the intraocular lens surgically. The effect is quite good.
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Cataract is a degenerative change in the quality of vision resulting from a decrease in the transparency or color of the lens. The pathogenesis of this disease is complex and is the result of long-term interactions between multiple factors in vivo and in vitro.
Because the lens is in the fluid environment of the eye, any factors in the intraocular environment, such as aging, genetics, metabolic abnormalities, trauma, radiation, poisoning, local nutritional disorders, etc., as well as systemic metabolic or immune diseases, can directly or indirectly destroy the tissue structure of the lens, interfere with its normal metabolism, and make the lens turbid, causing cataracts.
Senile cataracts, the most common, also known as age-related cataracts, are more common in people over 40 years of age; It increases with age, which is related to multiple factors, such as the slow metabolism of the elderly and the occurrence of degenerative diseases; It is also believed that it is related to factors such as long-term sunlight exposure, endocrine disorders, and metabolic disorders, and can be divided into two categories: nuclear and cortical according to the location of the initial opacity.
Concurrent cataract (complicated by other eye diseases, such as high myopia, **vein occlusion, **arterial occlusion and a series of fundus diseases).
Traumatic cataracts.
Metabolic cataracts, such as diabetic cataracts.
Radiation cataracts.
Drugs and toxic cataracts.
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Various causes such as aging, genetics, local nutritional disorders, immune and metabolic abnormalities, trauma, poisoning, radiation, etc., can cause lens metabolism disorders, resulting in lens protein denaturation and clouding, leading to cataracts. The disease can be divided into congenital and acquired:
1.Congenital cataracts.
Also known as developmental cataract, it exists before and after birth, mostly quiescent, can be accompanied by hereditary diseases, there are two types of endogenous and exogenous, endogenous and fetal development disorders, exogenous is caused by damage to the lens caused by systemic lesions of the mother or fetus, congenital cataract is divided into anterior pole cataract, posterior pole cataract, circumnuclear cataract and total cataract.
2.Acquired cataracts.
After birth, the lens opacity caused by systemic diseases or local eye diseases, abnormal nutritional metabolism, poisoning, degeneration and trauma is divided into 6 types: Senile cataract, the most common, also known as age-related cataract, is more common in people over 40 years old, and increases with age, and is related to many factors, such as the slow metabolism of the elderly and degenerative changes, some people believe that it is related to long-term sunlight exposure, endocrine disorders, metabolic disorders and other factors, according to the location of the initial opacity can be divided into two categories: nuclear and cortical. Concurrent cataract (complicated by other eye diseases).
Traumatic cataracts. Metabolic cataracts. Radiation cataracts.
Drugs and toxic cataracts.
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Cataract is a visual disorder caused by clouding of the lens. The lens is an important optical component of the human eye and is normally transparent. Due to various reasons, the lens protein degeneration and cloudiness occur, resulting in varying degrees of vision loss in patients, called cataracts, which can eventually lead to blindness.
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A cataract is a tissue inside the eye called the lens, which is clouded with age or for other reasons. Patients cannot see outside things, and outside light cannot enter the eyes smoothly, which is called cataract.
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Cataract is a condition that occurs on the lens, and any clouding of the lens can be called a cataract. It is mainly caused by aging and excessive UV exposure.
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Cataract is a crystal metabolism disorder caused by genetic, immune, metabolic abnormalities, poisoning, radiation and other reasons, resulting in the degeneration of crystal proteins and turbidity, that is, cataract.
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Cataract is a condition in which the lens of the human eye becomes cloudy, and its symptoms are as follows:
Blurred vision, fixed shadows in front of the eyes, it is a progressive ** vision loss. In the early stage of cataract, the patient's vision does not change much, the visual quality will decrease, and the vision is like a layer of fog, and the vision is blurry and not real. The lesion does not invade the pupillary area, and there may be no symptoms.
As the opacity of the lens increases, the patient's vision begins to gradually deteriorate. As it progresses, the lesion invades the pupil area, and vision gradually decreases with the severity of the violation, and even blindness. Second, there can be a decrease in contrast sensitivity.
There may be nuclear myopia, that is to say, some elderly patients will find that their presbyopia is reduced when the cataract develops to a certain extent, in fact, the cataract causes nuclear myopia, which is not a very good phenomenon, this situation is not that the presbyopia is good, but the myopia caused by the nuclear cataract compensates for part of the presbyopia. Ghosting may occur. Photophobia, glare, dim color, and loss of vision may occur.
If it is diagnosed as cataract, you can try to do drugs in the early stage, and you need to consider surgery in the future, pay attention to check blood sugar and rule out diabetes.
Cataract refers mainly to senile cataract and is caused by the aging of the lens. Here's how:
1. Drugs**: early application of topical eye drops and systemic auxiliary nutritional drugs. The local eye drops have a barrier, white internal stop, and a blindness. Systemic auxiliary nutritional drugs such as vitamin C, vitamin E, and Mingyan tablets;
2. Surgery**: phacoemulsification cataract aspiration + intraocular lens implantation, suitable for patients with cataract expansion, maturity, overmaturity, and high myopia.
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Cataract is mainly due to the loss of vision caused by the clouding of the lens, and the general cataract is divided into congenital cataract and cataract in the middle-aged and elderly people, as well as traumatic cataract. Cataract is the most common in middle-aged and elderly people, and the loss of vision in middle-aged and elderly people will find the clouding of the lens. The loss of vision caused by the clouding of the lens is generally diagnosed as a cataract.
Generally, patients with good cataract correction vision can be ordered with eye drops that inhibit the development of cataract by drug observation first**; If the vision loss caused by the opacity of the lens significantly affects the patient's vision, affecting work and study, the general corrected vision can be considered for cataract surgery in the following ways. At present, the main way of cataract surgery is phacoemulsification surgery.
The causes of cataracts are as follows:
1. Geriatric degenerative lesions: more common, with the increase of age, the lens will slowly appear cloudy;
2. Metabolic diseases: such as diabetes;
3. Malnutrition: If malnutrition occurs during pregnancy, congenital cataracts may occur after the child is born;
4. Drug factors: such as hormones, chlorpromazine, pilocarpine and other categories;
5. Radiation and electrical injury: such as outdoor work, long-term ultraviolet radiation can cause lens lesions; Long-term exposure to infrared or electrical injuries in steelmaking workers can also lead to cataracts.
At present, there is no specific drug that can prevent or change the formation of cataracts, and the agenic hormone should be avoided as much as possible in life.
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Clouding occurs due to deformation of the lens proteins due to various reasons, known as cataracts. In the eyeball model, the transparent part at the front, which is called the black eyeball, is actually the cornea. At the back of the cornea, there is a biconvex lens, and it is because of the opacity of this lens that cataracts are formed.
The most common reason is that as we age, the protein degeneration becomes cloudy, which affects the quality of vision and in severe cases, blindness.
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Cataracts are a condition in which the lens is clouded and vision is reduced. As long as your vision affects your life, you can do it. In the past, it was said that cataracts could only be done when they were mature, and it was for the first type of surgery at that time, cataract cystectomy. >>>More
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Posterior cataract is a common ophthalmic disease, which is a condition in which the posterior capsule of the lens retained during surgery is further clouded after cataract surgery, resulting in a further decline in the vision that was originally improved after surgery. When magnified with a slit lamp microscope, the doctor could see that the posterior lens capsule appears white and cloudy, which is caused by the proliferation of lens cells on the surface of the posterior capsule. The main symptom of the patient is that although the visual acuity has improved after cataract surgery, after a few months or years, there is a gradual decrease in visual acuity, which can be accompanied by symptoms such as glare and photophobia.