Eye exercises popular for 50 years, can you really prevent myopia?

Abstract: the study assessed the children’s completion of eye exercises in the form of questionnaire, and evaluated the quality by scoring. There are 40 items in total, including massage position, strength, range and frequency of eye exercises. Each item is 1 point, with a full score of 40 points.

in China, eye exercises have been used to prevent myopia for more than 50 years. But does it really work? Let’s take a look at the research team of Professor Wang Ningli of Beijing Tongren Hospital. The results were published in science reports in June 2016.

as a part of Anyang children’s Eye Study (ACES), 260 grade 7 students in aces were randomly selected for a two-year follow-up. The inclusion criteria of

included: they did not receive any “treatment measures” for myopia , including corneal contact lens, OK lens, massage, eye drops, ear needles, etc; Best corrected visual acuity ≥ 6 / 6; The equivalent spherical diopter after mydriasis is + 0.50D to? Between 6.00D; Astigmatism below? 1.50D; Anisometropia is less than 1.0d; There was no ocular or systemic disease that affected the development of visual function and refractive function. A total of 201 children were included, including 141 myopia and 60 emmetropia.

researchers defined myopia as ser ≤? 0.5D; Myopia progression is defined as: children with initial myopia, myopia progression ≥ 1.0d within 2 years, Or myopia occurs in children who are not myopia at first (SER ≤? 0.5d after mydriasis), otherwise it is defined as myopia control.

The study assessed children’s completion of eye exercises in the form of questionnaire, and evaluated the quality by scoring. There are 40 items in total, including massage position, strength, range and frequency of eye exercises. Each item is 1 point, with a full score of 40 points. If the score is greater than 30 / 40 and the score difference between two independent evaluations is less than 5 points, it is defined as “normative” completion of eye exercises. According to the requirements of the school, students should do eye exercises at least 5 times a week. According to the score and frequency, The researchers divided the completion into three groups:

high-quality group: children can complete eye exercises regularly (score ≥ 30 points) and do them at least once a day;

low-quality group: children can not complete eye exercises regularly (score < 30 points, or can not adhere to once a day;

non exercise group: children who never do eye exercises.

score, Ser and axial length measurement were completed independently by different researchers. The

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study mainly used nested case-control to conduct a control study on myopia and non myopia patients after follow-up to 2 years. The main results were as follows:

in 141 patients with myopia, 63 (44.7%) had myopia progression, and 18 of the 60 emmetropic subjects (30%) had new onset myopia; there was no significant correlation between doing eye exercises and the new onset and progression of myopia. In the high-quality group, low-quality group and non exercise group, the increase of eye axis was 0.4mm, 0.5mm and 0.4mm respectively, and the increase of ser was? 0.47d,? 0.76d and? 0.62d respectively. There was no significant difference.

However, subgroup analysis showed that the diopter progress of the high-quality eye exercises group was 0.15d lower than that of the non exercise group.

previous studies believe that eye exercises can only alleviate eye discomfort after close work, but can not control the progress of myopia. Moreover, even according to the requirements of most schools, the total time for doing eye exercises twice a day for 5 minutes each time is only 10 minutes a day. In addition, only about 15% of children can complete eye exercises, so the practical role of eye exercises is very limited.

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are difficult to implement in practice due to long-time RCT (few children can be allowed by teachers and parents not to do eye exercises at all for several years), so the researchers adopted the nested case-control method, which reduced the credibility of the study to a certain extent. At the same time, because the samples included in this study are still small, the actual effect of eye exercises needs more research to determine.

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