Regardless of age, sunglasses are necessary and more important for childrens eyeglasses because their eyes are more translucent than adults and UV rays are more likely to reach their retina.
Sunlight mainly includes infrared, visible light, and ultraviolet light, with visible light promoting visual development. The crystalline lens in adult eyes can filter out most of the ultraviolet rays, but the cornea and crystalline lens in infants and young children are more transparent than adults, and their ability to filter ultraviolet rays is very weak.
The damage of ultraviolet rays to the eyes can accumulate. Since children's eyes cannot filter out most of the ultraviolet rays, we need to help them filter them by wearing children's eyeglasses and sunglasses.
Children's visual development does require stimulation from light, but it does not necessarily mean that they need stimulation from ultraviolet radiation. What we need to do is filter harmful ultraviolet rays and leave behind beneficial visible light. In addition, sunglasses do not completely block visible light, and the filter rate of visible light varies depending on the color of the glasses.
As for children, it's better to bask in the sun more often. Sunbathing does have benefits, such as promoting the secretion of more dopamine in the body, inhibiting eye growth, and thus suppressing the development of myopia. But ultraviolet rays in sunlight can also be harmful to children, and this harm is not small.
Filtering ultraviolet rays is not a high technology, even qualified kids' eyeglasses near me can achieve it. It's not that babies don't need it, but it's difficult to wear sunglasses on their little faces, so parents need to be more careful with sun protection.
