Myopia means that people can see the objects close to them clearly, but they can't see the objects far away clearly. They need to be corrected by wearing myopia glasses. Presbyopia is a normal physiological phenomenon that occurs with age. It will make people see the objects close to them blurred and can be adjusted by wearing reading glasses. If myopia and presbyopia exist at the same time, it will make it difficult for people to see the objects near and far away, It has a great impact on daily life.

The characteristic of presbyopia is that with the continuous growth of age, the adjustment range of the crystal will gradually disappear, and the near point is getting farther and farther. The development of presbyopia begins at the early stage of life, and may be carried out immediately after the eyeball growth is completed (the eyeball stops growing until about 18 years old). The loss of regulation usually peaks before the age of 50. Among the problems that cause eye discomfort, presbyopia is the most widespread and affects everyone. No matter what the refractive status is, anyone will have presbyopia, just as anyone will be aging. For people who are emmetropic, presbyopia usually occurs at the age of 40 to 45, and a pair of close-up corrective glasses are required to read or work close at a comfortable distance. These glasses are called presbyopia glasses, presbyopia glasses or reading glasses.

To prevent presbyopia in the elderly, besides paying attention to eye hygiene, doing more exercise and strengthening eye care, diet conditioning is also very important. On the basis of understanding how the elderly can alleviate presbyopia, improve their health awareness, strengthen their self-care, pay more attention to the elderly's disease safety knowledge at ordinary times, protect their eyes, and wear reading glasses when they need to, so as to make their later life happier.