Buying Replica luxury sunglasses can't just consider beauty, the safety and function of sunglasses is the most important.
Must be purchased in a regular store, can provide detailed manufacturer information and product structure, material characteristics and usage precautions. A pair of qualified children's sunglasses need to block 95%-100% of UVA and UVB, filter 75%-90% of visible light, and a pair of unqualified Fake fashion sunglasses is not only useless and harmful, because when wearing sunglasses, baby The pupil will expand. If the sunglasses do not have the function of blocking ultraviolet rays, more harmful light will enter the baby's eyes, and the inferior lens thickness is different, and the color is uneven, which may cause visual damage.
In terms of lens material, polycarbonate is an ideal material, mainly light weight, good impact resistance, high light transmittance and 100% UV protection. Of course, the best lens material at present is NXT, which is a high-grade urethane polymer. The disadvantage is that it is too expensive.
The colors are mainly gray and brown. These two colors are currently more suitable for children to wear, because the deviation of the color of the object is relatively small, and the weakened light does not change the original spectrum distribution. Light stimulates the development of the macula of the eye.
When you try on it, you can choose to look at the distance from farsightedness and nearsightedness to see if it is clear and whether there is any deformation. Whether the color of the red, yellow or green light of the traffic light is clear is clear, you can walk a small distance, whether there is a sense of vertigo, and whether the ground plane has a concave and convex feeling. Is it convenient to walk?
No comments:
Post a Comment