What Are Polycarbonate Lenses?
Polycarbonate lenses are made from a type of plastic that is famous for its durability. Polycarbonate lenses are perfect for those who are doing sports while wearing glasses. It is also used in children’s glasses since kids are much less careful with their glasses than adults.
Costco Optical
Costco Optical is staffed by highly trained opticians and is well known in the Optical industry. The Optics division also stocks a wide variety of contact lenses, brand name frames, and sunglasses, and provides the latest high-definition lens technology. Costco now accepts most vision plans.
Lens anti-fogging agent
To be specific, a layer of the anti-fogging agent is sprayed (coated) on the surface of the lens to form a dense, absorbent, ultra-thin, and ultra-transparent biological coating. The coating chelates the droplets inside the coating (chelating means processing the material into a digestible form) to form a continuous and supper transparent chelating coating, which converts the droplets into a transparent micro-glass layer, thus preventing fogging. Spray anti-fogging agent on the surface of the lens, and then wipe evenly with an ordinary lens cloth. It can be used on most lenses. They are easy to use but have relatively short anti-fogging time. During use, the lens should not be wiped or washed. Long time use will affect the lens life.
Many optometrists have problems adjusting their frames almost daily. In the eyes of the customer, it is simple to use tools, but in reality, the technology involved is pretty important. It is no exaggeration to say that a good pair of glasses and optometry, collocation is equally important. If the customer's optometry parameters are normal, and glasses collocation is accurate, but wearing is not comfortable. So the collocation of glasses is very key, and many problems can be solved by the collocation of glasses.
Choose clear glasses with the right size for kids.
The choice of children's glasses should be based on the size of the child's face and the height of the nose. Most of the bridge of your child's nose is low, so you can choose an adjustable eyewear frame with a separate nose pad to avoid touching your eyelashes or wearing the glasses uncomfortably. If the frame is too small, the field of view will become smaller. The frame is too large, they are not stable, and the weight will increase. So children with glasses frame should be moderate in size.
Go to a regular hospital to check your eyes
On the surface, pseudo-myopia is the same as true myopia, that is, looking far away is blurred and near looking clearly. But looking at the essence through the phenomenon, the difference between the two is obvious. The so-called pseudo-myopia is due to frequent incorrect use of the eyes. The ciliary muscles continue to contract and spasm, and they cannot get the rest. And the crystals are also in a state of thickening. In this way, the parallel light from the outside enters the eye, and after the thickened lens chamber is flexed, the focus falls to the front of the retina, and it is naturally unclear to look at things in the distance. During this period, the eyeball has no organic changes. If you can take proper rest and treatment, pay attention to eye hygiene, use your eyes reasonably, and hope to restore normal vision. However, if the false myopia is not corrected and treated in time, it will develop into true myopia over time. There are many ways to treat pseudomyopia, mainly relaxation and adjustment, such as application of cycloplegia, acupuncture, physical therapy, improving the learning environment, paying attention to eye hygiene, and doing eye exercises. If you suspect false myopia, you should go to the hospital for an eye examination as soon as possible.
How much does it cost to add the blue light filter to glasses?
Based on the difference in the impact of blue light of different bands on the human body, the blue light transmittance of each band of the product is separately required. For example, in the range of 415-445 nanometers, the light transmittance should be less than or equal to 80%, and above 445 nanometers, it should be greater than 80%. In this way, the anti-blue light products can be restricted, which can effectively shield the blue light that poses a health and safety risk to the human body, but also allows the blue light of the waveband that regulates the human body's circadian rhythm to be effectively transmitted.
Anti-blue glasses are not suitable for everyone. It is only suitable for people who use electronic products for a long time, not for people who are visually fatigued, and teenagers should not wear them for a long time. Furthermore, anti-blue glasses should not be regarded as a 'talisman' and use your eyes uncontrollably after wearing them. Therefore, when using electronic equipment, people must abide by the laws of nature, ensure the normal rest of the eyes, and maintain eye health.
