Contact Lens Materials - Nesofilcon A and Omafilcon A
Nesofilcon A is super water glue. This is the proprietary material of Bausch & Lomb and is now used in only one product, the Bausch & Lomb Pure Suncast (launched in the US in 2012). Water content is 78%, and the oxygen permeability is DK/T =42.
Through PC Technology, the Omafilcon A material contains substances that mimic the composition of cell membranes--- including human eyeball cells, and locks water, and prevents dryness.
Disadvantages of progressive lenses
Wearing progressive multifocal glasses for the first time may cause slight dizziness and shaking when walking. Be careful when moving up the stairs. The perception of space changes, the perception of the distance of the object, and the perception of depth have changed. New wearers should not drive immediately and do vigorous exercise. When you look close, you need to turn your eyes down, and your eyes are mildly uncomfortable. Seeing the object through the blurred vision area around the lens, the object becomes blurred. Therefore, when new wearers look at things, turn their heads more, turn their eyes less, try to use the far-distance zone, the near-distance zone, and the middle-distance zone to see the object.
Why Do Replace New Lenses for Old Frames?
First, if your glasses frame is in good condition, glasses lens replacement is a good choice since it can help you to save money.
Second, if your eyeglasses have been part of your signature look for years, replacing the lenses with your new prescription is smart. Your family, friends, and customers won’t have to get used to a new you.
Continuous Pursuit of High Quality of KOALAEYE Eyewear
KoalaEye introduced the most progressive Italian glasses research and development technology and professional production line, closed to The times and the market. The Italian professional design team brings the world's top design concept. They insist on using progressive materials, high technology in manufacturing by virtue of Italy's technology. The glasses have been tested for more than 100 beats and ergonomically changed based on different face shapes. They treat each pair of glasses with the same standards as a work of art, making the whole pair of glasses look more sophisticated and special. The product style, quality, and details should be strictly controlled, so that every pair of glasses, no matter what style and material, must belong to high-quality products if it is produced.
Are carbon fiber glasses good?
Carbon fiber glasses are continuously changed to meet consumer demand. Adhering to the use of carbon fiber, they are more in line with the requirements of environmental protection and health. In the design of the new carbon fiber products, the weight of the bridge of the nose is further reduced when wearing, making it more fit and comfortable. Should you choose carbon fiber glasses or titanium glasses? It depends on your preference, ?like style, color, material, price, and so on. Because they are very not heavy, carbon fiber glasses are the most comfortable option for everyday wearers who are looking for the latest technology and the highest quality.
Common Bifocal Glasses Problems
In this section, we will list some common bifocal glasses problems.
First, it may take a couple of weeks to adjust the bifocal glasses. You may not get used to wearing your bifocal glasses overnight. When you wear the bifocal glasses for the first time, it may be difficult to adapt them.
However, knowing the correct part of the lens to look through is crucial to giving you the vision correction you need, whether it is distance or near vision, for different activities.
To adapt to the bifocal glasses, you had better wear them all day or as often as you can. If you don’t wear your new glasses enough, it can make the adaption period last even longer.
Besides the above bifocal problem, there are other problems with bifocal glasses. The second problem of bifocal glasses could be that the bifocal line is too high and you might lack adequate distance vision. So, the bifocal line could be obvious and it would not be beautiful. However, if you want a pair of glasses without a visible line, you could consider progressive lenses. You will feel older while wearing them, without having to worry about the line through the center of your glasses.
Select the lens.
The choice of lenses is one of the matters to note with glasses. Teenagers are active and often do sports. They can choose resin lenses, which are light, durable, and not broken. For some adolescents with complex refractive conditions, it is best to customize the lens in the case of the need for custom lenses, to get the perfect pair of glasses. Choose the refractive index that is right for you. The thickness of the edges of the lens is related to the size and shape of the frames in addition to the refractive index. The original state of the myopic lens is a circle that is thin in the middle and thick around, and then it is ground into the shape that suits the lens frame. If the thinnest center is relatively far from the edge of your frame, that is, if that frame is large, the edge of the lens will be thicker.
