Abstract: the best state of children’s visual development is to control the reading time within 4 hours every day, look close for 10 minutes, and then look far for 10 minutes. In other words, the ratio of looking far to looking close is 1:1. At present, urban children can’t do this ratio.
Tianjin Eye Hospital screened 20000 primary and secondary school students for vision and visual function, and established 15000 students’ visual health files, which recorded the students’ eye health status, visual development level and visual function in detail.
Tianjin Eye Hospital announced the statistical results of the eye health examination of 20000 primary and secondary school students. Primary school primary school students incidence rate of myopia in Tianjin has 3 characteristics: the incidence of myopia in
is increasing with age. The myopia rate of grade six in primary school is as high as 72%. In the pupil optometry, the incidence of myopia in 6 to 9 year old children increases with age. The number of poor eyesight is the highest in 9 years old children, and the incidence of myopia in the six grade of primary school students is higher than 72%. The incidence of myopia in the six grade of primary school is higher than 72%. The detection rate is more than 50%. From the age of 10 to 11, it was basically maintained at about 50%. At the age of 12, that is, grade 6, it peaked again, and the rate of poor eyesight was as high as 72.26%. Premature myopia in
children is related to less outdoor activities and long time of close eye use. Previous statistics show that the average school time of children in Tianjin is 7 to 9 hours; Close eye use time. The average homework time, including school homework time, is 3 hours every day except after class; The average outdoor activity time of children in Tianjin is less than 1 hour every day.
the best state of children’s visual development is to control the reading time within 4 hours every day, look close for 10 minutes, and then look far for 10 minutes, that is, the ratio of looking far to looking close is 1:1. At present, urban children can’t do this ratio. However, schools and families should let children read close for 45 minutes and look at the distance for 10 minutes, which can also protect their eyesight.
2 the age of myopia onset is getting younger and younger. The third and fourth grade of primary school has become a concentrated outbreak period of myopia.
the screening of children aged 6 to 8 accounts for 25% to 35%, but the vision correction rate of children aged 6 to 8 is less than 20%. Later, the correction rate of people with poor vision increases with age, and the vision correction rate is about 90% at the age of 12.
experts say that a considerable number of young children have 200 degrees or even more severe myopia when they go to the hospital for examination. On the one hand, it is because the learning task of lower grade children is not heavy, and children and parents have not found myopia; Second, even if myopia is found and the child feels young and shallow, he is unwilling to wear glasses.
children’s ametropia is not fully corrected for a long time, which will seriously affect visual development, permanently damage visual function, and lead to serious problems such as high myopia. Almost all children’s parents have experienced a tangle of glasses at the beginning of discovering their children’s myopia. In the early stage of myopia, parents must diagnose true and false myopia, change eye habits and eye environment, select high-quality and clear lenses, and regularly check and strictly monitor the development of myopia. Primary and secondary school students should have their eyesight checked every semester. Once they find that their children have vision loss symptoms such as squinting, unable to read blackboard books or often rubbing their eyes, parents must take their children to a regular hospital for eye examination and medical optometry in time.
3 common symptoms of visual fatigue have threatened children’s eye health.
this screening also found that 58.3% of students had eye health problems such as trichiasis, conjunctival congestion, eyelid conjunctival papilla and follicles. There are several students with high intraocular pressure. They should check their eyes regularly and monitor intraocular pressure to rule out the possibility of glaucoma. The screening of
also found that 58.3% of the students had eye health problems such as trichiasis, conjunctival congestion, eyelid conjunctival papilla and follicles. There are several students with high intraocular pressure. They should check their eyes regularly and monitor intraocular pressure to rule out the possibility of glaucoma.
from the current eye use of primary and middle school students, at present, simple eye exercises can not well alleviate the symptoms of visual fatigue for students who study closely for a long time, but need to carry out appropriate visual training according to the students’ visual function to help their visual function return to normal, so as to reduce their eye symptoms.
in addition, it was also found that children’s hand hygiene was worrying, and their eyes might be infected by rubbing their eyes with dirty hands, which suggested that schools and parents should pay attention to the eye habits and hygiene of students. To prevent myopia and eye diseases, diversified measures must be taken to achieve the goal. Therefore, it is very important for primary and middle school students to master eye hygiene knowledge and standardize eye behavior.