EDITOR:Shanghai Caesar Sunglasses maker
Sunglasses are a kind of vision health care products to prevent the damage to human eyes caused by the strong stimulation of sunlight. With the improvement of people's material and cultural level, sunglasses can also be used as special ornaments for beauty or personal style.
Cataracts are a closely related eye disease in which the corneas and crystals of the human eye are the most vulnerable to uv damage due to the ultraviolet rays from the sun reaching the earth's surface. Due to the destruction of the ozone layer and the increase of people's outdoor activities in summer, the harm of ultraviolet radiation to human eyes cannot be ignored. Wearing sunglasses is a good way to protect your eyes from uv damage, but pay special attention to your choice of sunglasses.
According to the regulation of international standard, sunglass is classified as the category that individual eye ministry protects things, because sunglass is to be worn in summer, main function is to keep out dazzling sunshine. However, the international standard divides sunglasses into "fashion mirror" and "general purpose mirror". The standard of "fashion mirror" quality requirements are relatively low. Because "fashion mirror" mainly highlights the style, the wearer is focused on decoration, rather than protection function. The quality requirements for "general purpose mirrors" are more stringent, including requirements for uv protection, as well as diopters and prisms.folding