Glasses for children and adolescents "shelf life"
If in daily life, it is found that the child has squinted eyes, blinks frequently, tilts his head or likes to look close to objects, etc., it is recommended to take the child for optometry and visual function tests as soon as possible. If the doctor recommends that the child wear glasses, it is best to review the optometry every six months, and replace and adjust the parameters of the glasses in time according to the changes in the degree.
Eyeglasses for adults "shelf life"
After adulthood, the degree tends to be stable, and it is generally recommended to do an optometry once a year. If there is little change in the diopter and the lenses are well cared for daily, the lenses can be replaced every one and a half years. Pay attention to frequently check the glasses for wear, yellowing, deformation of the frame and other conditions that affect the visual effect, and they need to be replaced in time. New mirror.
The "shelf life" of glasses for middle-aged and elderly people
After the age of 45, due to the aging of the lens and the weakening of the adjustment ability of the eye muscles, the symptoms of "presbyopia" will gradually appear, and the degree of "presbyopia" will increase with the change of age. The deepening of presbyopia is relatively slow. It is only necessary to wear the eyes when using the eyes at close range. The frequency of use is relatively low. Generally, the glasses can be replaced every 2-3 years.
