The hazards of rusty spectacle frames
The most common allergenic metal is nickel. Once allergy occurs, it can cause contact dermatitides such as redness, swelling, itching, and yellow water on the surrounding skin. Many alloy products in daily life contain nickel, such as coins, various alloy products, electroplated objects, spectacle frames, metal watchbands, belt buckles, artificial jewelry, underwear buckles, etc. Their direct contact with the skin will cause allergies to sensitive people. Therefore, the temples and nose pads are the parts that contact the skin with a larger area. In particular, the outer surface of the metal frame and the metal contain a large amount of nickel, which can cause rust spots and skin corrosion, and allergies through contact with the skin and the erosion of sweat.
Are Horn Rimmed Glasses Suitable for You?
Since the horn rimmed glasses are fashionable, some of you may ask whether horn rimmed glasses or horn rimmed sunglasses are suitable for you. It may depend on several factors such as style, preference, profession and responsibility. Horn rimmed glasses can bring a sense of fashion sense for you.
In addition, horn rimmed glasses will never go out of style. If you like them, have a try.
Vintage full-frame frames
The glasses with a full black frame give a person a more intellectual, literary feeling. As fashion accessories, they are very good. The frame is light, so you can wear it without any burden, and the price is super affordable. Black and metallic collision, let eyeglass frame have more individual glamour. It's light and comfortable to carry.
What should drivers notice when wearing polarized glasses?
Many drivers like to wear polarized lenses. Indeed, the polarized lens can reduce strong light, eliminate glare, so that the line of sight is natural and soft, but the polarized lens is more suitable for fishing, skiing, and other large areas of the reflective environment. Drivers sometimes have to face the tunnel and another dark scene, the polarized lens is easy to make people suddenly feel dark at the moment. In addition, polarized lenses can make LCD screens and LED traffic lights dim. Therefore, when choosing polarizers, it is best to choose good quality optics, and when going through the tunnel, it is best to take off your glasses ahead of time and blink a lot. Before wearing the driver polarizing lens, try it on and observe whether the polarizing film of the lens is smooth. If the polarizing film is uneven, there will be inflow in the imaging, which may lead to visual fatigue and migraine.
Functional zoning of the store
After determining its own positioning, the layout and functional partition of the optical store is very important. From the overall decoration to the details of the layout, they should reflect the professionalism and coordination of the optical shop. The general partitions of the optical shops include the eyeglasses business area, optometry room, contact lens wearing area, processing room, and cashier desk. The eyeglasses business area can be divided into more small modules separately. The division of the area should have a fixed standard. For example, the arrangement of this area can be selected according to the purpose, user group, occasion, and theme of the glasses.
How to Choose Glasses for Big Heads?
In this section, we will show you how to choose an eyeglasses frame for large heads. If you do not know how to choose, keep on your reading to find some solutions.
Rectangular frames: Rectangular frames add angle and can slim down the appearance of a larger head. So, if you have a big head, try the rectangular frames glasses.
Oversized frames: if you have a big head, the oversized frames would be a good choice. Oversized glasses will balance out your larger features.
Wayfarer frames: whether your style is retro or geek chic, you will find a perfect fit in trapezoidal wayfarer. The thick angular frames offset rounder cheeks and draw attention down from the forehead. So, if you have a large head, try this style.
When choosing glasses for large heads, you should also find the right shape and color for your signature look and style. While there are a lot of glasses styles for big heads, you should consider glasses with long enough temple length, the length between the hinge of your frames and where they bend around the ear. This measurement is critical for overall comfort, especially on your temples and near your ears.
So, from the above information, you have learned how to choose glasses for big heads.
What Is an Aspherical Lens?
An aspheric lens is a lens whose surface profiles are not portions of a sphere or cylinder. In photography, a lens assembly that includes an aspheric element is often called an aspherical lens.
The aspheric lens’s more complex surface profile can reduce or eliminate spherical aberration and also reduce other optical aberrations such as astigmatism, compared to a simple lens. A single aspheric lens can often replace a much more complex multi-lens system. The resulting device is smaller and lighter and sometimes cheaper than the multi-lens design.
Aspheric lenses are flatter than traditional lenses, but they still offer the same vision-enhancing benefits. They have a more attractive profile because there is less curvature. In addition, aspherical lenses have a more complex front surface with a gradual curve so that they can perform better by improving the way light refracts onto the retina.
Besides, most aspherical lenses are high-index, which, when combined with the aspheric design, offers a slimmer and lighter option for people who wear glasses so as to improve the look and feel.