I want to bring a pair of reading glasses to my family when I go back to my hometown this year. I don't know how many degrees to buy Please recommend it.

The degree of reading glasses is closely related to the luminosity of eyes. If you look straight into your eyes-that is, you have neither farsightedness nor myopia, then presbyopia will appear after 40 years old. It is more appropriate to wear+1.00D reading glasses around 45 years old, +2.00D for over 50 years old, +3.00D for over 60 years old and +70 years old for over 70 years old.

If you don't look straight into your eyes, you are nearsighted or hyperopic. For example, if you wear reading glasses, if you have ametropia, the reading glasses should be your hyperopia, plus the estimated degree mentioned above. For example, if you are 50 years old +2.00 hyperopia, then your reading ability is+2.00+2.00 =+4.00d. If you are 50 years old-1.00 myopia, then your reading ability is-1.00+2.00 =+1.

Reading glasses is not appropriate. You just need to wear reading glasses. If the distance is about one foot (825px) and you are not tired for a long time, then the degree is more appropriate. If you use a computer, it is best to be about 50-60cm. There is electromagnetic radiation on the computer screen, and the radiation intensity is inversely proportional to the distance. A longer distance can protect your eyes.

People with different binocular degrees, obvious astigmatism and large pupil distance are not suitable for wearing finished reading glasses. They should go to optometry and wear customized reading glasses to better protect their eyesight.