How to Get Used to Progressive Lenses?
How to adjust to a pair of new glasses? How long does it take to adjust to a new pair of glasses? In general, there are several ways for adjusting to progressive lenses. In this section, we will show you some of them.
- Put on your new progressive glasses in the morning and wear them for at least one hour or two. The next morning, try a few more hours. Develop your tolerance to adjust to them.
- When you walk, look straight ahead, not down at your feet. And, point your nose in the direction you want to look, not just looking left or right with your eyes.
- Don’t switch between your new pair and the old one frequently.
- Make sure your progressive glasses fit properly and don’t slide down your nose.
- When you read, don’t move your eyes or head. Move the page or paper instead.
- Set your computer screen below eye level. You can achieve that by adjusting your desk or chair.
Evolution of hard coating technology
The first generation of the use of hard coating technology began in the early 1970s, the quartz material is deposited on the surface of a resin lens under vacuum conditions, form a very hard anti-wear film. However, due to the mismatch between the thermal expansion coefficient and the film base material, it is easy to delaminate and crack the film. Instead, it forms the mottle on the surface of the lens, and the effect is not optimal.
The second generation of hard coating technology is the use of the 1980s. The surface of the resin sheet is coated with a material with high hardness and not easy to be brittle and cracked by an immersion process. At this time, anti-reflection coating lenses had appeared and gained the recognition of consumers, but the mismatch between adding hard coating and anti-reflection coating still caused serious lens wear.
The third generation of hard coating technology was developed in the 1990s, mainly in order to solve the problem of wear resistance after coating resin lenses with an anti-reflection film. The hardened material evolved into a polymer organic matrix material.
Fourth-generation coating technology is dominated by silicon atoms, in which the hardened solution contains both organic substrates. It contains inorganic ultrafine particles, including silicon elements, which make the hard coating not only tough but also hard.
How much do a pure titanium eyeglass frame cost?
For the plastic frame, without a fixed metal rod in the middle, the retail price of the exclusive store is 30 dollars or so. Resin-coated metal frames are inexpensive, 35 to 85 dollars in the store. Because pure titanium is more difficult to make, and the material is more expensive, the frame price often starts from 50 dollars. For example, the ordinary Seiko pure titanium eyeglass frame is about 85 dollars. In Europe and the United States and other developed countries, titanium spectacle frames are popular as a kind of high-grade decoration and fashion. In the past two years, the domestic began to be popular little by little. Titanium spectacle frame belongs to high-grade consumer goods, and the price is usually above 50 dollars.
How to Wear Cat Eye Glasses?
Since the cat eye frame glasses are so popular, you may ask whether I can wear the cat eye glasses. Usually, cat eye glasses can suit a variety of face shapes. But faces with more angular or prominent features would look best in a round or oval shaped pair of cat eye glasses because these cat eye frame glasses will balance wide jawlines of square or triangle faces, while the rounded lens will soften sharp features.
However, the round face will look best in frames which are with bold and angular lines. These striking details will help to sharpen soft facial features and rounded jawlines. You can click here to know more knowledge of the face shape and how to choose the glasses frames.
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.
Suggestions for Using Varifocal Glasses
If it is difficult for you to get used to the new varifocal glasses, here are some suggestions for you.
1. Wear the varifocal glasses consistently so as to let your brain learn how to use them.
2. The most common accident is tripping when getting used to new varifocal glasses. So, you can mix up your routine to keep your brain active and prevent you from tripping up.
You can also ask those who wear varifocal glasses to give you some advice.
Pair clear glasses with natural makeup.
Clear glasses and light makeup can make the focus of others in the glasses, so it will not appear abrupt. With a plain color coat, there is no sense of violation, and it is playful. A frame without lenses can be an accessory to give you a different feel.
