How about sunglasses with prescription? _Sunglasses knowledge_
In the hot summer, sunglasses are always a good fashion item in people's eyes. They can effectively filter out various glare, prevent ultraviolet rays from entering the eyes, and make our vision wider and see more clearly. However, because sunglasses are flat glasses, myopia patients cannot wear them and can only endure the harsh light. Therefore, the myopia sunglasses developed by experts in the eye industry can meet the needs of myopia patients who want to wear sunglasses. Let's take a look at the sunglasses with prescription. Sunglasses with prescription, as the name suggests, are a new type of product that combines the functions of myopia glasses and sunglasses. It can not only effectively protect the eyes from harmful external light, but also keep the eyes clear, convenient and easy to receive. Love and pursuit of myopia patients. Sunglasses with degree, also known as 'myopia sunglasses, It is more economical and more convenient to operate, but there are few types of clips, and many of them are different from the original myopia glasses. 2. Integrated myopia sunglasses: similar to the above, but not mostly on myopia glasses, link the purchased sunglasses clips together, directly on a pair of glasses, so as to avoid the above, more suitable for strenuous exercise . However, normal frames cannot be used, so two glasses are still required. 3. Myopic sunglasses with tinted lenses: Add a certain chemical substance to the myopic lenses to make the lenses appear colorful, which can also effectively filter out harmful light beams. However, the light transmittance of this kind of lens is relatively poor and cannot give normal visual clarity. 4. Myopic sunglasses with color-changing lenses: Using the principle of chemical reaction, some chemical substances, such as silver chloride or silver halide molecules, are added to the myopic lenses to make them automatically change color under sunlight, which is very convenient. In addition, the degree of discoloration and the restoration of chromaticity in the sun are very good, but compared with the above three, the price is relatively high.