Common Sense of Glasses(A)

1.do not frequently take off or wear, which will cause frequent activity from the retina to the lens and finally cause the degree to rise.
2.if you find the glasses can not meet the vision requirements, youshould promptly go to the regular institution to do a vision examination and correct the degree of myopia, replace the appropriate lenses, and regularly check.
3.if the glasses are placed on the table, do not make the convex surface of the lens contact with the desktop, so as to avoid abrasion. Do not place the glasses in direct sunlight or something heated  to prevent deformation and fading.
4.the normal reading Angle of a person is about 40 degrees. Generally speaking, looking straightly at a computer screen is an unnatural Angle, so it can easily cause fatigue, sore eyes, and even headaches. Suggested improvement method: The height of the seat and the Angle of the computer screen should be adjusted so that the center of the screen is between 7 and 10 degrees below our eyes.

5.people, with mild myopia,  do not need to wear glasses. Wearing glasses is necessary for mild myopia because you cannot see clearly at a distance, but you do not need to wear glasses when you are looking at close objects such as reading. In addition, in order to release eye fatigue , do more eye health gymnastics. With a little effort, myopia can be prevented.