Disadvantages of glasses
They can distort vision, especially at the edges of lenses if you have strong prescriptions or astigmatism. Some people have trouble adjusting to progressive lenses. These lenses fog up and splash in the rain. Due to the limitation of the frame itself and the effect of the prism effect in the peripheral part of the glasses, the wearer can see a relatively narrow field of vision.
Safety effects of non-prescription glasses
Safety glasses are available in a variety of styles for different users. There were glasses to protect his eyes from shocks or damage, like those used by people who lost an eye in the past. Many of them often wear protective goggles to protect their eyes from injury and to maintain a degree of vision. Safety goggles made of shatter-proof materials have become a staple in many industrial places, from factories to construction sites. Because in such an environment, the likelihood of being hit by debris or mud is very high.
Casual glasses
Casual glasses mainly focus on comfort. After work, it can be used for parties, going out, and other occasions. And touch texture is very good, and let you feel more comfortable when leisure, more relaxed. At the same time, simple and unique design, while increasing the sense of fashion frame, let your leisure occasion attract people's eyes. In addition to being very comfortable, the casual eyeglass frame perfectly combines modern and classical styles and colorful styles for your choice, combining personality and comfort.
How did the eyeglasses market develop?
With the discovery of clear glass paste in the 14th century, lenses became cheaper and easier to sell outside Venice. In the 15th century, the invention of the printing press made it easier to read, which greatly increased the demand for glasses. By the 16th century, frames were made of luxurious materials such as horn, leather, and whalebone. They used real turtle shells. The artificial plastic celluloid was later used to make frames that had never been seen before. In the 1950s, glasses became more popular than ever. Even today, glasses are considered one of the best fashion accessories. Different colors and styles of frames can be made according to the face shape. New technologies for lenses, contact lenses, and even frame materials continue to evolve year after year.
Ray-ban clear frames are of high quality.
Ray-ban is one of the world's top ten brands of sunglasses, in addition to anti-UV400 ultraviolet lens, and filter out all kinds of harmful glare, the style of the glasses design highlights the temperament of the military, with the mature style of fashion and nobility. Ray-Ban's frame is the most part of Ray-Ban glasses, with unique design, atmosphere, and fashion, suitable for different situations and loved by many fashion people.
The disadvantages of progressive lenses
- The field of view in the near and middle distances is relatively narrow.
- The adaptation time is longer and patients with greater astigmatism are not suitable for wearing.
- The peripheral aberration is large, and there will be large astigmatism in the periphery.
How to clean a contact lens case?
Avoid cleaning contact lens cases with running water. Tap water contains a number of chemicals that can be harmful to contact lenses, as well as microorganisms such as bacteria. Please rinse and disinfect with boiling water. Use contact lens solution before cleaning. Let it dry. Make sure the contact case dries naturally before you use it. Stay away from cosmetic bags. It is to avoid that your contact lens case is contaminated by cosmetic bags. Some dust from cosmetic products can easily contaminate contact lens cases, so stay away from cosmetics.
