Can men wear clear frame glasses?
Clear frames are suitable for young men and women, handsome, with personalities. But if older people wear it, they will look old. Clear glasses frame is more stylish with personality, and it is very fashionable but not for everyone. Choose this kind of frame, you should consider the age, face shape, and so on. Clear frames are usually more suitable for younger people because they are younger and more handsome.
The lenses of prescription glasses
Common materials for lenses include glass, resin, and PC. The glass is fragile and heavy, and few people wear it anymore. PC film is tough and not fragile, but it is not resistant to high temperature and the surface is easily scratched. The most common type of lens on the market today is the resin lens, which is light in weight, hard to break, and reasonable in price. At present, it is generally recommended that you choose resin sheets, and it is recommended that people with ultra-high myopia choose glass sheets.
Generally, lenses can be divided into spherical and aspherical surfaces according to different curvature designs. When choosing, refer to the degree of the eye. For people with lower degrees, There are fewer differences between the two shapes. For people with moderate to high myopia, aspherical lenses will have better imaging effects and clearer vision.
When choosing a lens, a parameter that is often mentioned is the refractive index. Common refractive indexes are 1.56, 1.60, 1.67, and 1.74. With the same degree, the higher the refractive index, the thinner the lens.
Buy Prescription Glasses Online Step By Step
1. Before you can buy glasses online, you’ll need a current glasses prescription.
2. Select an online retailer, comparing online retailers like EyeBuyDirect and KOALAEYE until you find the best fit for your needs.
3. Shop for the perfect frames according to face shape, frame favorites, the budget, etc.
4. Once you’ve found your perfect frames, you’ll enter your eyeglasses prescription and pupillary distance to choose the lenses.
5. Read over the fine print on return/exchange policies and product warranties before you complete your order.
6. Having picked your perfect frames, entered your prescription information, added any lens coatings and upgrades, and checked your online retailer's warranty and return policy, it’s time to complete your order.
Why are eyeglass frames are so expensive?
Good frames and bad frames are very different just in how they feel. The bigger the brand company, the more money it invests in the design, research and development, production equipment, and equipment of the lens frame every year, so as to improve the wearing comfort and improve the combination and precision of the lens. Even if for the general assembly line, the processing process is also very complicated. The most expensive things to make by hand are labor and time.
Does blue light cause damage to the eyes?
Businesses often associate blue light with mobile phones and computers that everyone frequently touches. There are also many terrible explanations about blue light on the Internet, ranging from causing damage to the eyes to causing cancer. Therefore, in recent years, mass media and academic circles have caused heated discussions about the possible impact of blue light on eye health.
It is believed that the reason why blue light harms the eyes is that blue light is not like ultraviolet light which is absorbed by the cornea and lens so that it cannot reach the retina. Blue light can reach the retina through the refractive medium of the eye, and over time it will cause the aging and functional degradation of the retina. But in fact, the eyes have many protection mechanisms in the process of evolution, such as squinting, pupil contraction, lutein contained in the macula of the retina, the anti-oxidant repair mechanism of the retina, etc., which can protect our eyes from the damage of blue light. Also, after scientific testing, the blue light emitted by electronic products is a few percent of the intensity of blue light in natural light, which means that as long as the electronic products are not used continuously every day (for example, more than 8 hours a day), blue light will not be causes obvious damage to the eyes.
Women's glasses are increasingly fashionable.
As for the color, there are a variety of metallic colors, unreal colors, transparent or translucent tones. The frame design is gorgeous and dazzling. There is an implicit low-key style with the brand logo embedded in the frame. Many models combine two or more materials, such as metals and plastics, in a unique way. There are both very bright colors and natural hues, with a wide selection.
Glasses Size - Lens Height
Lens height is the length between the top edge of a lens and the bottom edge of that lens. Lens height is the distance between the lowest point of the lens and the top of the frame above it. This number may be influenced by the style of your glasses.
