Abstract: the method of testing pseudomyopia from a professional point of view, ciliary muscle spasm, regulation can not relax, such myopia is generally called “pseudomyopia”. Which type of customers are most likely to have pseudomyopia?, Survey data have shown that pure pseudomyopia accounts for only 8% of myopia. Most myopia is true or mixed. As long as we are a little careful in the optometry process, or take some measures (such as fog vision, short-term mydriasis, etc.) we can eliminate the interference of pseudomyopia. Teenagers, school-age children and long-time close workers are high-risk groups for the occurrence of pseudomyopia, because most of the time they use their eyes is to see close. Myopia occurs in order to adapt to the environment. It begins to be pseudomyopia and gradually becomes true with the passage of time. It can be said that pseudomyopia is the transition stage from normal eyes to myopia. Although this stage is reversible, the unchanged eye environment will eventually lead to the occurrence of true myopia. From a professional point of view, ciliary muscle spasm, regulation can not relax, resulting in myopia, generally known as “pseudomyopia”. Which type of customer is most likely to have pseudomyopia? How can we know from the optometry that this customer is pseudomyopia?, Teenagers, school-age children and long-time close workers are high-risk groups for the occurrence of pseudomyopia, because most of the time they use their eyes is to see close. Myopia occurs in order to adapt to the environment. It begins to be pseudomyopia and gradually becomes true with the passage of time. It can be said that pseudomyopia is the transition stage from normal eyes to myopia. Although this stage is reversible, the unchanged eye environment will eventually lead to the occurrence of true myopia., Survey data have shown that pure pseudomyopia accounts for only 8% of myopia. Most myopia is true or mixed. As long as we are a little careful in the optometry process, or take some measures (such as fog vision, short-term mydriasis, etc.) we can eliminate the interference of pseudomyopia. To sum up, I don’t think we need to think too much about pseudomyopia in practical work. Scientific optometry methods, good professional skills, patient and meticulous examination and practical work experience are all our magic weapons to deal with pseudomyopia., The method of testing pseudomyopia from a professional point of view, ciliary muscle spasm, regulation can not relax, so the myopia is generally called “pseudomyopia”. Which type of customer is most likely to have pseudomyopia? How can we know from the optometry that this customer is pseudomyopia? Many people are used to judging whether there is pseudomyopia from the degree. I think it is wrong. It should be more reliable from the age point of view. Generally, the possibility of pseudomyopia under the age of 12 is high; Pseudomyopia also occurs when they are older than 12 years old and younger than 18 years old, which is less likely; More than 18 years old, the lower the possibility of pseudomyopia; Above 35 years old, mydriatic optometry is not needed to judge whether there is pseudomyopia. For young patients, the tested refraction may be true myopia plus pseudomyopia, that is, from a single degree point of view, it is impossible to see true and false. You need to do some tests to know. Younger age, long-term close viewing (playing computer, reading, watching TV close, holding pen posture, etc.) and excessive learning pressure may lead to pseudomyopia. It can be recovered as long as there is enough rest time and a long time to look at the distance and relax the ciliary muscles of the eyes. But in some patients, pseudomyopia is already very serious. It is professionally called adjustment locking, that is, in order to see closer and adjust the ciliary muscle to lock the adjustment force of the eye. If so, it can be relieved only through strong mydriasis. There are three main methods to test pseudomyopia., 1. Fog method is very common. The method is as follows: the visual acuity of the customer is about 0.3 from fog vision to far vision for more than 15 minutes, and then test the visual acuity. If the visual acuity is improved, there is false myopia., 2. Mydriasis method this method is used in most hospitals. It can completely reduce pseudomyopia, but there is a certain risk. “Tropicamide” is used for ordinary mydriasis, and “atropine” is used for strong mydriasis., 3. The third method of negative test may be rarely heard. I call it “negative test” for the time being, that is, after the patient’s Optometry (red, green and clear, JCC fine adjustment), add a 2.00ds in front of his eyes. If he sees closer more clearly (his vision has not decreased), there is no false near vision. If it becomes blurred, there is pseudomyopia (the accuracy is about 89%). Through negative test and fog vision method, we can only know whether there is pseudomyopia, and we can’t get the degree of pseudomyopia. So I still need mydriasis. The accuracy of over negative test method is only 89%, which can not be said to be very high, but the principle is easy to understand. Without pseudomyopia, the normal adjustment of the eye can completely offset a 2.00ds (positive relative adjustment value). The vision may be clearer (that is, the brightness is high) or there is no visual loss. If the eye has pseudomyopia, that is, it has been partially adjusted, then the offset-2.00ds needs more adjustment (greater than the positive relative adjustment value), and there will be temporary blurred vision. Then there is the possibility of pseudol myopia.,
survey data show that pure pseudomyopia accounts for only 8% of myopia, and most myopia is true or mixed. As long as we are a little careful in the optometry process, or take some measures (such as fog vision, short-term mydriasis, etc.) we can eliminate the interference of pseudomyopia. Teenagers, school-age children and long-time close workers are high-risk groups for the occurrence of pseudomyopia, because most of the time they use their eyes is to see close. Myopia occurs in order to adapt to the environment. It begins to be pseudomyopia and gradually becomes true with the passage of time. It can be said that pseudomyopia is the transition stage from normal eyes to myopia. Although this stage is reversible, the unchanged eye environment will eventually lead to the occurrence of true myopia. From a professional point of view, ciliary muscle spasm, regulation can not relax, resulting in myopia, generally known as “pseudomyopia”. Which type of customer is most likely to have pseudomyopia? How can we know from the optometry that this customer is pseudomyopia?
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teenagers, school-age children and long-time close workers are high-risk groups for the occurrence of pseudomyopia, because most of the eye time of this group is to see close. Myopia occurs in order to adapt to the environment. At first, it is pseudomyopia, which gradually becomes true with the passage of time. It can be said that pseudomyopia is the change from normal eyes to myopia