1. Survey and questionnaire survey: The questionnaire survey can be conducted in the community, especially in schools, community centers and other places where teenagers gather. The questionnaire can include information such as teenagers' age, gender, degree of myopia, family history of myopia, time spent watching electronic screens, etc.
2. Observe the school's vision examination: The school usually organizes vision examinations regularly to check the students' vision. Collecting these examination data can provide some information about adolescent myopia.
3. Study the data of ophthalmologists: You can cooperate with nearby ophthalmologists to obtain the data of adolescent myopia diagnosed by them. These data can provide a more accurate situation for the community.
4. Education and publicity activities: The community can organize eye health education and publicity activities to convey the importance of preventing myopia to teenagers and their parents, and provide relevant knowledge and suggestions. This can increase people's attention to myopia.
It should be noted that the above methods can only provide some information about myopia, and cannot represent the situation of all teenagers. In addition, professional ophthalmologists can make more accurate diagnosis and treatment according to personal conditions. If you want to know the myopia of teenagers accurately, you'd better consult a professional doctor or institution.