There is no need for glasses to prevent blue light. It is recommended not to blindly buy and use glasses that claim to protect eyes from blue light, because they also lack evidence to prove their effectiveness.
Blue light has been proved to affect the circadian rhythm of the body, and too much blue light emitted by electronic products at night will destroy people's ability to fall asleep. However, with the further understanding of blue light, people find that blue light plays an important role in maintaining human health, such as regulating hormone secretion in organisms. At the same time, blue light can also avoid reducing night vision ability, which is also beneficial to the refractive development of teenagers and minors.