How to choose frames?
You can choose a thicker frame with the lens, and then pay attention to the temple. It is better to have a little weight, or the frame is easy to lose forward. The shape of the frame can be elliptical. If the frame is rectangular, the rim of the lens may be a little thick. Choose frame TR90 plate and the frame will be wider than ordinary alloy. Of course, if you like metal, there are now metal frames with thick frames.
The origin of aspheric lens
The Visby glasses, unearthed in Gotland, Sweden, are the earliest aspheric lens found. The Vikings in the 11th century used it as a magnifying glass, and some of the best ones were made of silver, making them look like handicrafts. In 1667, Francis Smethwick grinds the first high-quality aspheric lenses and presents them to the Royal Society. That's a telescope with three aspheric elements. In 1956, Elgeet, which originally designed and manufactured optical instruments for the U.S. Navy, produced the world's first mass-produced aspheric lens for photography (Golden Navitar 12mm F1.2) for a 16mm film machine. Today, aspheric lenses are found in everything from tall telescopes to missile guidance systems to camera lenses. In the glasses we wear, the aspheric lens is familiar to consumers.
Wooden frames: Wooden frames are one of the hottest new trends that pair perfectly with round face shapes. The natural materials used on these frames give this style an elegant feel.
Wayfarer glasses: As for how to choose glasses for round faces, wayfarer glasses are recommended. These frames will bring a touch of old Hollywood to your look. In addition, their distinctive angles add contrast to your features.
So, from the above information, you can know that round faces glasses come in all sorts of shapes and colors. In addition, you can also try Koalaeye glasses, which are stylish and come in at a cheap price.
Tungsten carbon glasses frame
Tungsten carbon material, one of the obvious advantages of this material is that it has good toughness and is ultra-lightweight. People will feel no pressure when wearing such glasses. It is good if you are a sportsperson who chooses it.
Seek professional help.
Many plates, TR glasses have fixed nose pads that cannot be changed. But the metal material of the nose pad can be changed. An optometrist who is a professional optometrist may not be a good adjuster. There is no conflict between the two. The skills about that shall be developed in a lot of practice. For a seemingly easy operation, its strength is invisible real skills.
Can blue glasses double up as sunglasses?
The main function of sunglasses is to keep out dazzling strong light, to reduce the eye adjustment that causes fatigue or the harm that strong light stimulation causes. Their light transmittance is very low, only suitable for use when the sun is strong outdoors. If wearing sunglasses indoors, or at dusk, or even in the evening, because the light is reduced, it will not play a role in protecting the eyes or even will increase the burden of the eyes. The Anti-blue lens is yellow-green and needs to meet the transmittance and blue obscurity. If you are walking outdoors for a short time, good blue light glasses can of course completely meet your outdoor eye protection needs, but due to the high light transmittance, it is not suitable for a long time outdoors, as the sunglasses. Because although it can block UV rays, they are not very good at the filtering of strong light. General anti-blue glasses can not be equal to sunglasses, the main function is not the same, and the use of the scene is not the same.
How to buy contact lenses online?
Choose well-known brands.Nowadays, the contact lens brands in the market are mixed, with the proliferation of inferior products, but there are still some authoritative and well-known ones, like Johnson & Johnson, Bausch & Lomb, which are products recognized by most users, and you can rest assured to buy them.