What is Nearsightedness?

Myopia, TCM disease name. When the eye is in a relaxed state of adjustment, the focus of the parallel light rays before the retina through the eye's refractive system falls before the retina. Ancient medical books have known this disease for a long time, and it is called that the eyes can not be farsighted. Generated by congenital, those with a higher degree of myopia are also called nearsightedness. The occurrence of myopia is related to many factors such as heredity, development, and environment, but the exact pathogenesis is still under study.

Myopia is when the eye is in a relaxed state of adjustment, the focus of the parallel light rays before the retina through the eye's refractive system falls before the retina.

Myopia actually has some cognition and explanation as early as the Sui Dynasty: The earliest records of "Chinese medicine myopia symptoms" and "the eyes cannot be farsighted" can be found in "Symptoms of the Sources" of Chaoyuanfang in Sui Dynasty. In the Ming Dynasty, myopia was further specified, and in the Qing Dynasty, it was the dynasty where the term myopia was born; in the Ming Dynasty, Wang Kentang's "Zheng Zhi Zhi Yuan" called it "can be near and distant," Fu Renyu "reviewing Yaohan" said that "Yi", Huang Tingjing's "Ming Jing Da Cheng" in the Qing Dynasty began to be called myopia.

In fact, dating back to the earliest medical technique, the Yellow Emperor's Internal Classic, clearly articulated the laws of development of life. The Su Wen · Ancient Innocence and the Lingshu · Tian Nian Pian, for human life, long, strong, and old Existing laws of life are subtly observed and scientifically summarized. Traditional Chinese medicine has long recognized that the visual functions of various animals, including the human eye, have evolved gradually to adapt to the environment, especially sunlight.

This disease is equivalent to myopia in Western medicine.

1. Excessive eyesight has been used for a long time to see blood damage and blood loss and gas loss, so that God's light cannot be seen far away.

2. Deficiency of liver and kidney, insufficient endowment, debilitating divine light, Guanghua cannot be far away, but can only see close.

1. Acupuncture treatment: The principle is based on local acupoints (ie, eye points), supplemented by whole body acupoints. According to the needs of the patient's physical and medical conditions, 2-3 acupoint groups are selected, and the points are rotated regularly. (1) Body Acupuncture: The following acupuncture points are commonly used: weeping, eyesight, four whites, shoulders in Yu, head dimension, behind the ball, eyesight, light, taichong, Zhaohai, Sizhukong, etc., acupuncture a group a day, round In exchange for acupuncture, 10 times is a course of treatment. (2) Ear acupuncture: often take points Shenmen, liver, spleen, kidney, eye, head 1, head 2 or look for pain points in the ear area, or press pressure points such as Wang Bu Liu Xing seeds, massage yourself 3-4 times a day . (3) Plum blossom needles: Use the plum blossom needles to lightly pierce the temples; or to pierce both sides of the back spine (Huajing Jiaji points), once a day, 10 times for a course of treatment.

2. Manipulation method: take 3 points under the bamboo shoots in the main acupoint, take bamboo shoots, fish waist, silk bamboo, four whites, and bright eyes in the acupoints. You can massage by yourself or with each other. After acupuncture, aim at the acupoints for a small circular massage for 10 minutes. Usually 1 month is a course of treatment.

3. Optometry optics: The principle of optics is to select the lowest power lens that allows the patient to obtain the best vision.

1. Develop a good habit of using eyes. Keep a straight posture when reading and writing. Keep a distance of about 30cm between the eyes and the book. Do not read books while walking, driving or lying in bed.

2. Study and work environment lighting should be moderate, lighting should be free of glare or flicker, the blackboard should not be reflective, and should not be read or written under sunlight or dark light.

3. Regularly check your vision. For myopia diagnosed by optometry, you should wear appropriate glasses to maintain good vision and normal adjustment and assembly.

4. Strengthen physical exercise, pay attention to nutrition, and enhance physical fitness.

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Myopia is to see things in the distance will be blurred, presbyopia is to see things in the near range can not see clearly, so many people think that myopia and presbyopia can offset each other, young people with myopia will not be presbyopia in the future, in fact this This concept is not accurate. So what is the relationship between myopia and presbyopia? Will myopic people not get presbyopia ^[2] ?

Fu Te, deputy director of strabismic amblyopia and pediatric ophthalmology at the Second People's Hospital of Jinan City (Jinan Eye Hospital), said in an interview that myopia and presbyopia can not only offset the two, but people with myopia often have presbyopia earlier.

Myopia is a concept opposite to hyperopia. Myopia is affected by many factors such as heredity, development, and eye habits. Fu Te explained that during the development stage of the eyeball, using too many high-intensity close-up eyes will cause the ciliary muscle to continue to contract. The ciliary muscle is in a high tension state, which easily leads to spasm. The lens axis is elongated, which causes vision loss. Fu Te said, "People with myopia have less use of the ciliary muscle regulation function, which is not effectively exercised, and the regulation function is more easily degraded, so it is more likely to presbyopia.

According to Feng Qingyang, an ophthalmologist at Guangdong Maternal and Child Health Hospital, what we usually refer to as presbyopia is a visual problem that gradually appears after entering the middle and old age. Just as the hair gradually turns white and the skin appears wrinkled, as the age increases, the eyes gradually decline in function, the regulating power of the muscles in the eye will decrease, the lens will thicken and harden, causing the eye's zoom ability to decrease. When looking at a close object, the vision is not clear, often accompanied by short-term eye use can not last long, reading requires stronger illumination, etc. ^[2] .

So what's the connection between the two? If myopia has presbyopia, you can take off your glasses when looking at near objects, giving the illusion that myopia and presbyopia cancel out. In fact, just the lens power just offsets. Myopia glasses are negative spherical lenses, and reading glasses are positive spherical lenses. If myopia is low in youth, such as over 100 degrees, he will wear reading glasses 5 to 10 years later than his non-myopia peers. Therefore, myopic people will still get presbyopia, but the lens power is different ^[2] .

Patients with both presbyopia and myopia can choose bifocal lenses. Bifocal reading glasses are designed for presbyopic patients. Therefore, the focal distance for long-distance viewing is usually placed above, while the lenses for near-distance and presbyopia are placed below. This kind of glasses is more suitable for presbyopic patients with near-sightedness above 300 degrees. The advantage is that they can see from a distance, as long as a pair of glasses can be done ^[2] .