What color coating is good?
The purpose of plating anti-reflection film is to reduce the reflection of light. But because it is impossible to be completely free of reflected light, there will always be some residual reflection on the surface of the lens that causes the visible color. Someone asks which kind of these residual color is best. It does not have a standard actually. It is mainly based on a personal preference for color. More on the market at present is green color. However, these residual colors can initially help us to judge the thickness of the film: when the film is thin (the thickness is less than 139nm), the reflected light will show light yellow, and when the film is thick (the thickness is more than 139nm), it will show blue-green. The current multi-layer anti-reflection film thickness is about 0.3μm.
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.
How to determine whether progressive lenses are worn correctly?
Once your glasses are back from the lab, the optometrist will let you put them on for an audition and make final adjustments to make sure they fit. If the prescription is not in the center of the lens, it will make it difficult for you to see clearly. The key is that the lenses match the wearer's eyes, especially the pupils. Before ordering a new lens, the optometrist takes two measurements: pupil distance and fitting height.
What is a progressive lens?
A progressive lens is a lens whose upper sides are used to see far, and the lower side is used to see near. The distance from the fixed distance power above the lens to the near power fixed below the lens does not change suddenly, but a gradual transition between the two through the gradual change in refractive power.
Standard progressive lenses are multifocal lenses with three observation areas, farsightedness, intermediate vision, and nearsightedness. Unlike bifocals, there are no visible lines between each viewing area. They have a seamless, invisible design, where the optical power changes 'gradually' throughout the lens. Many people confuse 'bifocal' or 'trifocal' with 'progressive' but remember that bifocals and trifocals have visible lines in the lens, while progressive lenses do not. Because progressive lenses have no lines in the lens, they are more popular multifocal lenses than bifocal lenses. However, is progressive lens good for eyes?
Best Eyeglasses For Women - Chanel
Chanel glasses inherit the consistent tradition of Chanel brand. The elaborate design of the style can be clearly seen from its detailed carving, innovative technology, and excellent lines and contours. In addition to the elegant logo, the glasses themselves appeal to the public with their sharp silhouettes and avant-garde designs and colors. Chanel is the lofty yearning in the heart of every woman. Its thin and light frame, streamlined design, increasingly foil the wearer's eyes.
Benefits of glasses
You don't need a special cleaning plan, and they don't require much care. You can choose from a variety of frames to suit your style. If your vision stays the same, you won't need to change your glasses as often. You don't need to touch your eyes to wear them, and in addition, glasses can adjust the amount of light entering your eyes for optimal comfort and vision. Glasses are more powerful modifiers than contact lenses. Glasses are not only used as a tool to correct vision but as accessories. On different occasions, the different dresses should match different frame glasses, reflecting the person's different temperament.
Can't Use Alcohol To Clean Glasses
Generally speaking, alcohol is not suitable for cleaning resin lenses. Resin lenses are relatively soft and are usually coated with a film. It not only improves the hardness of the lens, but also has more other functions. The lens film is not suitable for cleaning with harsh cleaning agents. As we all know, alcohol has a certain stimulating effect, so it is harmful to the film of the lens.