Abstract: pseudomyopia mostly occurs in adolescents with strong adjustment function. After a long time of close eye use, the far vision is blurred for a period of time, and the far vision can return to normal after rest., I. definition of pseudomyopia: temporary decline of far vision caused by adjustment tension or spasm is called pseudomyopia. Because the decline of far vision is related to regulation, it is also called regulatory myopia. Simple pseudomyopia is only a temporary decline in far vision. As long as you rest properly and relax and adjust, you can recover. Therefore, there are still disputes on this term in clinic, but there are consistent opinions on the existence of pseudomyopia., II. Pseudomyopia. Simple pseudomyopia mostly occurs in teenagers with strong adjustment function. Due to excessive use of close eyes, the adjustment is tense or spasm. As long as you have a proper rest and relax the adjustment, the far vision can return to normal. Pseudomyopia can occur in the early stage of mild hyperopia, emmetropia and myopia. The clinical manifestation is that as long as the adjustment is relaxed, the far vision can return to normal. If the far vision can not be completely restored, it can not be called simple pseudomyopia. Optometry is a reliable method to determine whether it is pseudomyopia. Such as natural optometry (without mydriasis) there is myopia degree, and those who are proved to be mild hyperopia or emmetropia by optometry after mydriasis are simple pseudomyopia, but this situation is rare in clinic, because the degree of pseudomyopia is mostly below 200 degrees, which has little impact on far vision. In addition, they can return to normal after rest, so they rarely go to the hospital for examination. The most common is myopia with pseudomyopia. In the early stage of myopia There may be short-term false myopia, which fails to attract attention. Do not check until the far vision can not return to normal after rest, At this time, it is not pure pseudomyopia, but true myopia combined with false myopia components (some people call it true and false mixed myopia). Due to the inconvenience caused by mydriatic optometry, there are few epidemiological investigation reports on false myopia. Although the results of a small batch of investigation can not be summarized and comprehensive, they can also explain some problems. Some people are satisfied with 100 cases (200 eyes) often used the eyes at close range, and the far vision decreased. The adolescents with normal near vision underwent natural optometry and mydriatic optometry. The results showed that both natural optometry and mydriatic optometry were myopia. After mydriatic optometry, 28 eyes (14%) were mild hyperopia or emmetropia (simple pseudomyopia), 172 eyes were myopia (86%), of which 45 eyes (26%) did not decrease the degree of myopia after mydriatic optometry (true myopia), 127 (74%) eyes had mydriasis, and the degree of myopia decreased after optometry, but there was still myopia (true and false mixed myopia). It can be seen that there are few simple pseudomyopia in myopia examination, even if there is mixed myopia. III. manifestations of pseudomyopia, true myopia and mixed myopia: 1. Pseudomyopia mostly occurs in teenagers with strong adjustment function. After long-term close eye use, they have blurred far vision, exist for a period of time, and hyperopia after rest The force can return to normal. Myopia degree of natural refraction is less than 200 degrees, and emmetropia or mild hyperopia after mydriatic refraction. As long as you pay attention to eye hygiene, you can generally recover without glasses; 2. True myopia} mostly occurs in school age and lasts a long time. Far vision tends to decline and will not fluctuate upward. The diopters of natural optometry and mydriatic optometry are similar, most of which are more than 200 degrees. At present, there is no cure for true myopia. In order to facilitate study, work and life, suitable glasses should be worn: 3 Mixed myopia, poor distant vision, There may be fluctuations (sometimes good and sometimes bad), but the fluctuation is below normal vision, which can not reach normal. The natural refraction degree is more than 200 degrees, and the mydriatic refraction degree has decreased, but it is still myopia. It shows that there are regulatory factors in true myopia. The glasses should be subject to the mydriatic refraction result, and the pseudomyopia degree should not be added to the myopia degree. IV. treatment opinions should be based on reality, Simple pseudomyopia is less. As long as you pay attention to eye hygiene and don’t use your eyes too close, it can generally recover naturally and prevent the occurrence of myopia. If you leave the basic point of eye hygiene, any treatment of pseudomyopia can not have long-term effect.,
1. Definition of pseudomyopia
the temporary decline of far vision caused by tension or spasm is called pseudomyopia. Because the decline of far vision is related to regulation, it is also called regulatory myopia. Simple pseudomyopia is only a temporary decline in far vision. As long as you rest properly and relax and adjust, you can recover. Therefore, there are still disputes on this term in clinic, but there are consistent opinions on the existence of pseudomyopia.
II. Pseudomyopia phenomenon
simple pseudomyopia mostly occurs in teenagers with strong adjustment function. Due to excessive use of eyes at close range, the adjustment is tense or spasm. As long as you have a proper rest and relax the adjustment, the far vision can return to normal. Pseudomyopia can occur in the early stage of mild hyperopia, emmetropia and myopia. The clinical manifestation is that as long as the adjustment is relaxed, the far vision can return to normal. If the far vision can not be completely restored, it can not be called simple pseudomyopia. Optometry is a reliable method to determine whether it is pseudomyopia. Such as natural optometry (without mydriasis) there is myopia degree, and those who are proved to be mild hyperopia or emmetropia by optometry after mydriasis are simple pseudomyopia, but this situation is rare in clinic, because the degree of pseudomyopia is mostly below 200 degrees, which has little impact on far vision. In addition, they can return to normal after rest, so they rarely go to the hospital for examination. The most common is myopia with pseudomyopia. In the early stage of myopia There may be short-term false myopia, which fails to attract attention. Do not check until the far vision can not return to normal after rest, At this time, it is not pure pseudomyopia, but true myopia combined with false myopia components (some people call it true and false mixed myopia). Due to the inconvenience caused by mydriatic optometry, there are few epidemiological investigation reports on false myopia. Although the results of a small batch of investigation can not be summarized and comprehensive, they can also explain some problems. Some people are satisfied with 100 cases (200 eyes) often used the eyes at close range, and the far vision decreased. The adolescents with normal near vision underwent natural optometry and mydriatic optometry. The results showed that both natural optometry and mydriatic optometry were myopia. After mydriatic optometry, 28 eyes (14%) were mild hyperopia or emmetropia (simple pseudomyopia), 172 eyes were myopia (86%), of which 45 eyes (26%) did not decrease the degree of myopia after mydriatic optometry (true myopia), 127 (74%) eyes had mydriasis, the degree of myopia decreased after optometry, but there was still myopia (true and false mixed myopia).