What kind of myopia glasses are good

The materials of myopia glasses have also changed with the advancement of technology. The emergence of various new materials has led to great changes in the types of myopia glasses. There are more types of frames and lenses, and different combinations make the types of glasses more diverse. In terms of appearance and function, glasses have a lot of choices, so problems also follow. Although there is a lot of room for choice, what kind of myopia glasses are considered good?

Lens materials generally include glass, resin and PC. Glass has the best wear resistance but is easy to break. Resin is cheap and not easy to break. PC is slightly more expensive and does not break. The wear resistance of the latter two mainly depends on the manufacturer's coating level. Generally, only those from large manufacturers are more durable. The transmittance of the lens is also very important, but new lenses are generally qualified. The transmittance is related to the wear resistance after long-term use. Different people need to choose different products. For example, glass is needed for work or welding. If you are a driver, it is best to wear polarized driver's glasses. If you are a student, you can wear aspherical lenses. Nowadays, most people who wear glasses have aspherical lenses, and moon-shaped lenses are the most popular.

Metal myopia glasses frame

At present, there are three types of metal materials used for eyeglass frames: copper alloys, nickel alloys and precious metals. The materials used are required to have certain hardness, softness, elasticity, wear resistance, corrosion resistance, weight, gloss, color, etc. Therefore, the metal materials used to make the frames are almost always alloyed or processed on the metal surface before use.

Copper Alloy

Generally speaking, copper and copper alloys have poor corrosion resistance and are prone to rust. But the cost is low and easy to process. After surface processing, it is often used in low-end frames.

Nickel Alloy

Generally, nickel alloys have better corrosion resistance and are not easy to rust, and their mechanical properties are also better than copper alloys. Therefore, nickel alloy materials are mostly used in metal frames.

Titanium and titanium alloys

Pure titanium is a silvery-white metal. The density is 4.5, and its light weight is its greatest feature. It also has high strength, corrosion resistance and good plasticity. The titanium alloys commonly used for frame materials include titanium aluminum, titanium vanadium and titanium zirconium. It has better elasticity and corrosion resistance. It is a mid- to high-end product among metal frames. Since the early 1980s, the research and development of titanium frames has been mainly carried out by Japan and a few other countries. Up to now, the processing problems such as cutting, polishing, welding and electroplating have been gradually solved, making titanium frames tend to be basically popular.

Acetate myopia glasses frame

The plate myopia glasses frame is made of high-tech plastic memory plate. It has a fashionable appearance and is easy to match with clothes. It is a must-have glasses frame for many young men and women to show their personality and style.

Tungsten Carbon Myopia Spectacle Frame

Tungsten carbon myopia glasses frame is made of tungsten carbon material, which has extraordinary flexibility and is ultra-light, so that there is no pressure on the nose bridge and ears during wearing. It is light and comfortable, and is the best choice for athletes.

Natural material myopia glasses frame

Sagawa Fujii wooden myopia glasses frame

Natural materials used to make eyeglass frames include special woods, animal horns and tortoise shells. Generally, wooden frames and horn frames are rare, and the most representative ones are tortoise shell frames. Hawksbill turtle material is a frame made from turtle shells found in tropical oceans. It is characterized by light weight, good gloss, durability and preservation value. It is a high-end product among all types of frames and is very popular among middle-aged and older male wearers. Its disadvantage is that it is easy to break, but it can be repaired by bonding after breaking. When displayed on the counter, it needs to be placed in water to prevent drying. During use and maintenance, ultrasonic cleaning must not be used, otherwise it will turn white and lose its luster. Since hawksbill turtles are prohibited from being caught in the ocean, they are more expensive.