Abstract: the age of myopia in students is earlier and the trend of younger age is obvious. Over the past five years, the myopia rate of primary school students in Ningbo has increased significantly. The incidence of myopia in the 7-9 age group, that is, the lower grade of primary school, has increased from 16.3% in 2010 to 52.8%., Ninety percent of students are myopic. From the test results, the occurrence of myopia in primary and secondary school students shows three characteristics: first, the incidence of myopia is different among students of different age groups. The older the age, the higher the incidence of myopia. According to the test in 2014, the incidence of myopia in the age groups of 7 to 9 years old, 10 to 12 years old, 13 to 15 years old and 16 to 19 years old were 52.8%, 80.0%, 88.4% and 90.5% respectively., 2. The incidence of myopia is different among students of different genders. The incidence of myopia in girls is higher than that in boys. In 2014, the incidence of myopia was 71.9% for boys and 75.6% for girls; In 2010, the incidence of myopia was 58.8% in boys and 65.1% in girls., III. The age of myopia in students is earlier and the trend of younger age is obvious. Over the past five years, the myopia rate of primary school students in Ningbo has increased significantly. The incidence of myopia in the 7-9 age group, that is, the lower grade of primary school, has increased from 16.3% in 2010 to 52.8%. More and more young children are nearsighted., More and more diseases of the fundus are found in the elderly. The main reason is that the incidence rate of hypertension and hyperglycemia and hyperlipidemia is increasing, and there are more and more cases of vascular sclerosis and blood flow disorders. In addition, the widespread use of mobile phones and computers leads to a high incidence of myopia, which is also the cause of disease. When these people get old, they often have a lot of fundus complications., Ninety percent of
students are myopic
and
. From the detection, the occurrence of myopia in primary and secondary school students shows three characteristics:
and
. First, the incidence of myopia is different among students of different age groups. The older the age, the higher the incidence of myopia. According to the test in 2014, the incidence of myopia in the age groups of 7-9 years old, 10-12 years old, 13-15 years old and 16-19 years old were 52.8%, 80.0%, 88.4% and 90.5% respectively.
2. The incidence of myopia is different in students of different genders. The incidence of myopia in girls is higher than that in boys. In 2014, the incidence of myopia was 71.9% for boys and 75.6% for girls; In 2010, the incidence of myopia was 58.8% in boys and 65.1% in girls.
III. The age of myopia in students is earlier and the trend of younger age is obvious. Over the past five years, the myopia rate of primary school students in Ningbo has increased significantly. The incidence of myopia in the 7-9 age group, that is, the lower grade of primary school, has increased from 16.3% in 2010 to 52.8%. More and more young children are nearsighted.
and
fundus lesions are more and more
and
elderly
mainly because of the increasing incidence rate of hypertension, hyperglycemia and hyperlipidemia in the elderly, causing more and more cases of vascular sclerosis and blood flow disorders. In addition, the widespread use of mobile phones and computers leads to a high incidence of myopia, which is also the cause of disease. When these people get old, they often have a lot of fundus complications.
,
and “three high” groups there are many office white-collar workers in the
and
groups who do not form the good habit of regular exercise. Fat and cholesterol accumulate in the blood vessels a little bit, and finally cause fundus lesions.
three factors
first, lack of physical exercise. On the whole, students’ physical education, recess exercises and daily physical exercise are good, but some schools and students still lack exercise.
2. The burden of study and work is too heavy. The heavy burden makes it difficult to guarantee the activity time and sleep time, which are very important to vision health. Too long close eye use also accelerates the impact on eye health.
III. The living environment needs to be improved. The popularity of smart phones and computers further aggravates visual fatigue.
how to protect your eyes
1. Don’t use your eyes excessively and have a rest at regular intervals; If you can’t leave your seat, lean back, close your eyes and relax;
2. Put a desk lamp next to the electronic display as your desktop light source, so that your eyes won’t be too tired and don’t let the sun shine directly on the display;
3. Correct sitting posture: do not bend down and hunch. The closer you get to or lie prone to work class, it is easy to cause excessive tension of ciliary muscles and myopia;
4. Don’t sleep too little and have regular work and rest;
and
5. The nutritional intake is balanced, and the partial diet is not allowed. Special attention should be paid to the intake of vitamins;
6. Regularly do vision tests, ophthalmic examinations, etc.