Where to Buy Titanium Glasses?
After learning the advantages and disadvantages of the titanium glasses, you may ask where I can buy them if I have a lot of budgets. In order to buy titanium glasses, Koalaeye Optical is recommended.
The Koalaeye glasses are stylish and come at a very cheap price. What’s more, Koalaeye Optical provides all kinds of glasses, sunglasses and frames. And the glasses can be shipped for you free. So, if you want to buy titanium glasses, try Koalaeye Optical.
INMIX Driving Glasses
Inmix has tried many functional innovations, like an ultralight frame that weighs only seven grams and can float on water, a blue lens that blocks radiation from computer and mobile phone screens, and an allergy nose pad. Inmix Glass is an attempt to distance itself from its competitors with a strong visual style. The performance of Inmix glasses is beyond its young brand positioning. The brand competitiveness of the old brand is not lost at all. Opening the affordable era of glasses, it truly realizes the ecological chain from factory to consumer, and gives consumers the most cost-effective high-quality glasses. Parity and quality make the sales volume double every year, and the sales volume in 2015 is more than the sum of the previous years.
The lenses of prescription glasses
Common materials for lenses include glass, resin, and PC. The glass is fragile and heavy, and few people wear it anymore. PC film is tough and not fragile, but it is not resistant to high temperature and the surface is easily scratched. The most common type of lens on the market today is the resin lens, which is light in weight, hard to break, and reasonable in price. At present, it is generally recommended that you choose resin sheets, and it is recommended that people with ultra-high myopia choose glass sheets.
Generally, lenses can be divided into spherical and aspherical surfaces according to different curvature designs. When choosing, refer to the degree of the eye. For people with lower degrees, There are fewer differences between the two shapes. For people with moderate to high myopia, aspherical lenses will have better imaging effects and clearer vision.
When choosing a lens, a parameter that is often mentioned is the refractive index. Common refractive indexes are 1.56, 1.60, 1.67, and 1.74. With the same degree, the higher the refractive index, the thinner the lens.
How to Choose Reading Glasses?
If you need reading glasses when using a computer, you may want to choose a lower reading glasses power. This is because most people view their screen from a greater distance from their eyes than when they are reading a book or a magazine.
However, if you need reading glasses for looking at something very close or very small, you may need a pair of stronger power glasses.
In most cases, when two reading glasses’ powers seem equally suitable, choose the glasses with the lower power. Picking reading glasses that are too string typically will cause more discomfort problems than reading glasses that are a little too weak.
Dark-rimmed glasses with wider frames
When choosing dark frames for round faces, one should pay attention to the width of the frames. If dark frames give people a feeling of narrowing, then the frames will appear smaller. Small frames make your face look bigger and rounder, so choose frames that are wide. If you can't wear a wide frame because the lenses are too strong, skip black and opt for something lighter.
Study On the Night Driving Glasses
Researchers at Harvard's Schepens Eye Research Institute recently conducted a study to find out if wearing night driving glasses while driving at night is good for vision. All 22 participants drove under four conditions that simulated night driving, wearing either yellow night driving glasses or glasses with clear lenses. Each participant drove with or without the headlight glare simulator activated to simulate the effect of oncoming traffic. The study found that wearing glasses while driving at night didn't seem to improve: how well the participants were able to recognize pedestrians at night and negative effects of headlight glare on pedestrian detection. Our data suggest that wearing yellow lenses while driving at night does not improve performance at the most critical task: pedestrian detection, the study's authors said. A small 2019 study showed that night driving glasses can actually slow down visual reflection by a fraction of a second, making night vision worse.
What is the best lens material?
Trivex is a special material from PPG. Compared with PC lenses, the refractive index is lower (only 1.53) but the Abbe number is higher (up to 45), which results in smaller dispersion and better image quality. At the same time, the impact resistance of the Trivex lens is 10 times higher than that of the PC. It is the only explosion-proof safety lens that can withstand external force twists and turns in the market at present.
