Writing essays with the theme of "promoting popular science metrology knowledge" can stimulate primary and secondary school students' interest in learning metrology science knowledge, enhance their learning consciousness, let metrology enter campus and family through words, and show a positive, healthy and lively spirit. The following are five short articles with the theme of "Know how to measure and protect your eyesight" for your reference!
In today's society, people pursue novelty and change. All kinds of 3C products dazzle us. People are stepping into the era of science and technology, but 3C products have also become the devil to control people.
Why? The data shows that 94% people use 3C products every day, which is really scary! It also caused terrible data of myopia of primary school students. It is a treasure in the eyes of students that primary school students don't wear glasses now.
I am no exception. When I first came into contact with 3C products, I felt I couldn't stop and revel in them, day after day, year after year. Until one time, when the eyesight was measured at school, the nurse's sister said, "You are nearsighted at 225 degrees, so start paying attention to your eyes!" " I began to recall my previous attitude towards life, oh! I fell into the trap set by 3C products. I use 3C products for one and a half hours every day. No wonder I'm nearsighted, so I've been wearing inconvenient glasses since that day.
Whether in class or doing anything, I can't do without my heavy glasses, especially physical education class. You can't run and jump as freely as before, you should be careful in everything. Once, a person accidentally fell down, and his glasses fell to the ground and were trampled by his classmates. Not only was I scolded by my family, but I also spent money to buy a pair of glasses, which really bothered me.
So I made up my mind to be a master in vision care. First of all, I have to shorten the time of using 3C products, but it is as painful as drug addicts trying to get rid of drugs. Sister nurse also suggested that I look at the green mountains and green waters more, which is very helpful for my eyesight. So I often go out for an outing with my family and get in touch with nature, only to find that my life is not only a monotonous 3C product, but also many exciting and interesting things waiting for me to explore one by one.
Also, it's a good idea for my sister nurse to tell me to eat more vegetables. I, who am an enemy of vegetables at ordinary times, still have to bow to it for the sake of vision care and give up silently. The most important thing is to watch TV at a distance of 30 cm from the TV, and the brightness of the light should be from the left rear.
I looked up a lot of information on the Internet for my eyesight. After several months of hard work, my eyesight has not deteriorated, but has improved! Sure enough, God helps those who help themselves, and I am willing to share my valuable experience with people who like to use 3C products around me. I hope they can take good care of their own windows and not become a four-eyed frog like me.
When you were a child, when you and your parents walked hand in hand along the tree-lined path, enjoying the beautiful scenery of green grass and flowers blooming on both sides, when you looked up at the starry sky and observed the vast starry sky in the universe, when you were absorbed in reading with a book, did you feel happy because we had a pair of bright eyes?
Look at how many of us wear glasses today. It used to be a symbol of learning, but are all the students wearing glasses clear today? We regret it more. Why didn't you pay attention to protecting your eyes at that time? According to statistics, the myopia rate of students in China ranks second in the world, the myopia rate of primary and secondary school students has exceeded 55%, and there are 300,000 young people in China who are blind due to myopia. What a terrible number this is! What we got was one of the numbers, class! !
But let's not be afraid. Most of our classmates are still the most common pseudomyopia. I believe everyone has had such an experience. Looking at writing homework for a long time and occasionally looking up around, you will find that the surrounding scenery is covered with a layer of gauze, which is actually a kind of pseudomyopia. The so-called pseudomyopia refers to the spasm of eye muscle adjustment caused by long-term staring at nearby objects. During hyperopia, some diopters are still not relaxed, so far vision is decreased, while near vision is normal. If you suffer from pseudomyopia, if you don't prevent it, your eyes will be in an over-regulated state for a long time. After a long time, some pseudomyopia may become true myopia. Pseudomyopia can be treated, don't wait until it develops into real myopia.
So, how should we protect our eyes?
Generally speaking, in our daily life and study, we should pay attention to eye hygiene and develop good eye habits. For example, keep a correct sitting posture and read books in sufficient light; When writing for a long time, take a break every 45 minutes, look at the distance and let your eyes get a full rest; Keep doing eye exercises every day. At the same time, diet is also very important. Eat more foods that are good for your eyes, such as lean meat rich in protein, liver of poultry, fish and shrimp, eggs and beans. Liver, cod liver oil, milk and eggs of various animals containing vitamin A ... We also need to check our eyes regularly to find problems in time.
Students, eyes are the first window of our life and study. We must take good care of them! To protect your eyesight, you should start from scratch, form a good habit of using your eyes, and leave a bright future for tomorrow.
Understanding measurement and protecting eyesight theme composition 3! Finally, the winter vacation is over! I can have a good time! What are you playing? Of course, this is a computer game that I will never forget.
Since the fifth grade, my eyesight has plummeted, from 5.3, 5.2 to 4.9! This amazing change surprised me. How did my eyesight become so poor? Think about it. Alas, I played so many computer games this semester. Eyes staring at the display screen, don't want to blink. Every time my mother tells me to rest, I always say "right away, right away", and I barely stop after countless urging. If you don't do eye exercises seriously, it is inevitable that your eyesight will decline.
At the end of the semester, the physical examination report was issued. Teacher Zhou received the report and said, "I read the report carefully and found that many students have abnormal eyesight." We must protect our eyes in the future. If you find myopia, you should go to the hospital to correct it ... "When I hear this, I can't help but bow my head in shame and secretly make up my mind to watch less TV and computers, correct my posture and strictly protect my eyes!
I also found that due to the progress of science and technology, students gave up their usual games and fell in love with computers and mobile phones. In daily life, when I go out to get together with my parents and meet children, I don't get together happily to play games, but play mobile phones. Not only children, but also adults. Low-headed people can be seen everywhere on buses, subways and elevators. From time to time, I can see them snickering and immersed in their own happy world. In fact, although you are temporarily happy, your body is suffering every minute. The radiation of the computer affects this health, the screen hurts the eyes, and the shoulders and necks are protesting too tired! Some students think that myopia is nothing, just wear glasses, but with the growth of age, the situation will become more and more serious, and wearing glasses is not convenient at all. It is often seen that "mother with glasses" is blurred by the hot air every time she eats. How miserable it is. Therefore, it is necessary to arrange the online time reasonably and protect your eyes.
Walking into the study, I found the computer sitting quietly on the table and smiling at me. There is a conspiracy in the smile in my eyes. I turned my head and left, thinking: it's better to be happy for a while than for a long time …
Knowing how to measure and protect one's eyesight Theme Composition 4 Xiaoming loves reading books since childhood. But he has a bad habit, that is, he watches while walking on the way to and from school, reads books while eating, and reads books while sleeping, so his eyesight drops rapidly, getting worse every day.
Look! After school, Xiao Ming began to read while walking. He accidentally tripped over the stone under his feet. Dongdong saw it, ran quickly, lifted Mingming from the ground and said to Xiaoming, "Don't walk and watch, or you will fall." Besides, reading like this is not good for your eyes. "When Xiao Ming gets home, it's time to eat. He came to the table and sat down, put the book in his hand on the table, with a book in his left hand and chopsticks in his right hand, and read while eating dinner. Seeing the happy place, my mother came in and said, "Xiao Ming, the meal is cold, eat quickly!" "Read after eating, don't read while eating." Xiao Ming replied with some displeasure: "I know!" "
In the evening, Xiaoming finished his homework, so it's time to have a rest. He opened a book, tucked it in and read it with relish. Suddenly, my mother opened the door and found Xiaoming lying in bed, absorbed in reading! I couldn't help flying into a rage and said to Xiao Ming, "How can you read in bed? Isn't this myopia? Put the book down quickly! " Xiaoming had no choice but to send the book back to the bookcase and go to bed. But after his mother left, he quietly went to the bookcase to take out the book and secretly looked at it. Mom was not at ease, and when she turned around, she found him reading again! Mother was even more angry, so she turned off the light. Xiaoming can't see anything, so he has to put down his book and go to bed.
At the end of the term, the school began to check the students' eyesight. It is Xiao Ming's turn to check. Aunt pointed to "E". Originally, she opened her mouth to the right, but Xiao Ming pointed to the left. He can't read several lines in a row. Results The left eye visual acuity was 0.7, and the right eye visual acuity was 0.8. Aunt asked him, "Do you have a bad reading posture?" ? Reading while lying down? "Xiao Ming repeatedly said," Yes, yes. " Aunt said to him again, "You can't read while lying down. Pay attention to your reading posture, or your eyesight will decline even more. "
Xiao Ming regrets it very much. He is determined to get rid of the bad habit of not paying attention to reading posture and protect his eyes. Otherwise, your eyes will be invisible in the future and you will not be able to take care of yourself. How terrible the consequences are!
Once upon a time, I had a pair of bright eyes. People who met me always said, "Open the giant panda, your eyes are really big!" " Your eyesight must be very good! "However, their second sentence is wrong. In fact, my eyes have been nearsighted since the third grade.
That's because I don't look at my writing homework correctly at home, and I also watch TV and play computer. As a result, my eyes gradually blurred and my vision gradually declined until my mother took me to optometry. At this point, my eyes have reached 100 degrees. My mother was afraid that my eyesight would continue to decline, so she gave me a pair of glasses.
Wearing glasses is really uncomfortable! I was not used to wearing glasses at first. I feel dizzy, just like sitting on a bumpy boat in a rough sea, and there seems to be a stone on my nose. When eating, the hot air in the dish ran to the camera, like a layer of gauze, which made me unable to tell the difference between East and West. When I went to physical education class, I was accidentally hit by a basketball and the shelf of my glasses was damaged. Sometimes naughty dust will stick to the lens, making it blurred and needing to be wiped with a cloth. ...
My mother was distressed to see me wearing glasses at such a young age. I can't eat and sleep, and I try my best to find the remedy for myopia everywhere. Later, she went to the glasses massage shop to treat me, and spent thousands of dollars, which didn't help. She also took a progressive film for me, and my eyesight gradually declined, and my mother was relieved. But a year later, my eyesight got out of hand and continued to decline. When I optometry again, my vision was over 500 degrees. The doctor advised me to pay for the OK mirror, because it was the last hope. My mother told me that this was the last time she helped me correct my eyesight. I hope to protect my eyes. I nodded in agreement. So, my mother gave me an OK mirror. OK glasses are similar to contact lenses, and they are colored and transparent glasses. Wearing it at night can press the eyeball and improve vision.
Since then, I have always taken good care of my eyes and insisted on wearing OK glasses every night. Strangely, my eyesight suddenly rose from 0.4 to 1.0. I took off my heavy glasses and lived like a normal person.
Although it was troublesome to wear OK glasses, I persisted. Because it can bring me good eyesight. So everyone must take good care of their eyes and protect their eyesight.