What is simple myopia?
In recent years, with the popularity of electronic devices and the increase in study pressure, the problem of myopia has become a health topic of global concern. Simple myopia is one of the most common types of myopia. This article will combine the hot topics and hot content on the Internet in the past 10 days to provide you with a detailed analysis of the definition, causes, symptoms, and prevention and control measures of simple myopia.
1. Definition of simple myopia
Simple myopia, also known as school myopia or benign myopia, refers to vision problems caused by excessively long axial length of the eyeball or excessive refractive power. It usually occurs in school-age children and adolescents. Unlike pathological myopia, the degree of simple myopia increases slowly and tends to be stable in adulthood.
2. Causes of simple myopia
According to recent hot discussions, the causes of simple myopia mainly include genetic factors and environmental factors. The following is the relevant data:
| Cause classification | specific factors | degree of influence |
|---|---|---|
| genetic factors | Myopia in both parents | high risk |
| environmental factors | Using your eyes at close range for a long time | medium to high risk |
| environmental factors | Not enough outdoor activities | medium risk |
| environmental factors | Not enough light | low risk |
3. Symptoms of simple myopia
The main symptoms of simple myopia include:
1. Distance vision is blurred, near vision is normal.
2. Requires squinting or frowning to see distant objects clearly.
3. Symptoms such as eye fatigue and headache may easily occur after prolonged use.
4. Prevention and control measures for simple myopia
Based on recent hot topics, the following prevention and control measures are widely recommended:
| Prevention and control measures | Specific methods | Effect |
|---|---|---|
| Increase outdoor activities | At least 2 hours of outdoor activities every day | Significantly reduces the risk of myopia |
| Control the time you use your eyes | 20-20-20 rule (look 20 feet away for 20 seconds every 20 minutes) | Effectively relieve eye fatigue |
| Adjust the eye environment | Maintain adequate lighting and a reading distance of more than 30cm | medium effect |
| regular eye exams | Professional inspection at least once a year | Early detection and early intervention |
5. The relationship between recent hot topics and simple myopia
1.“Double reduction” policy and myopia prevention and control: After the recent implementation of the education “double reduction” policy, students’ academic burden has been reduced and their time for outdoor activities has increased. Experts predict that this will help reduce the incidence of simple myopia.
2.screen time: With the popularity of remote working and online education, screen time has increased significantly, and how to balance eye health has become a hot topic of discussion.
3.New prevention and control methods: The efficacy and safety of new prevention and control methods such as low-concentration atropine eye drops and orthokeratology lenses (OK lenses) have attracted much attention.
6. Summary
Simple myopia is a common vision problem among teenagers, and its prevention and control requires joint efforts by families, schools and society. Through comprehensive measures such as increasing outdoor activities, scientific eye use, and regular examinations, the occurrence and development of simple myopia can be effectively reduced. Recent hot topics also remind us that myopia prevention and control needs to keep pace with the times and combine new social environments and technological means to protect the visual health of young people.
(The full text is about 850 words in total)
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