Polarized Sunglasses For Driving Car
Thu, May 05, 22 By : Koalaeye
Glasses Direct MyOptique Group was founded in 2004, as a search for affordable eyewear and has grown to serve more than 3 million customers a year. In order to bring our ideas to the global stage, They were acquired by Essilor International in 2016. Their inspiring spirit of Better lives through better Eyes not only makes them a leading force in their industry but also aligns with their values. Through this, they were able to partner with and support Vision...

Glasses Direct

MyOptique Group was founded in 2004, as a search for affordable eyewear and has grown to serve more than 3 million customers a year. In order to bring our ideas to the global stage, They were acquired by Essilor International in 2016. Their inspiring spirit of Better lives through better Eyes not only makes them a leading force in their industry but also aligns with their values. Through this, they were able to partner with and support Vision For Life's two-for-one scheme, which provides eye care to people in need around the world.


Does it matter if the glasses are damaged when mailing?

Many people think that the frame of glasses is slightly damaged and can be ignored, in their eyes, if the lens is fine, the glasses are OK to use. In the whole process of matching glasses, it is necessary to choose a regular lens organization. The lens should be suitable, and the choice of the frame is very particular. Once the frame is out of shape, it needs to be replaced, and if left unchecked, further damage to the eye is possible.



Do round rimless glasses look good?

Some glasses use the transparent piece of circular arc model design, so make the person that wears more handsome. Lens frame uses simple fine design, added a lot of simple sense again in low-key. Some round rimless glasses are shaped with circular corners and some edges, seemingly simple, but very good to modify the face. The selection of the temple is quite simple but more simple. Rimless round glasses look chic, with only two temples as support, very suitable for business, elite people to wear. When a woman wears round rimless glasses, the glasses can show the wearer's own style and temperament, and blend well with the appearance of the wearer. The collocation of clothes will not be ignored due to wearing rimless glasses, but they show the overall unity and coordination.


What Glasses Lens Thickness Should I Choose?

In this section, we will show you how to choose glasses lens thickness. Lens thickness will depend on the strength of your prescription, your pupillary distance, the size of the frame and the lens material. Usually, high prescription glasses are thick.

If you have moderate nearsightedness, you should choose thinner lenses at the edge thickness of your lenses will be more visible. If your sphere prescription is between -2.50 and -4.00, the lenses with a refractive index of 1.6 would be an ideal choice. A lens with a refractive index of 1.67 is suitable for sphere prescription between -4.00 and -6.00, and any prescription over that a lens with a refractive index of 1.74 will be more suitable.

So, when you purchase prescription glasses, consider the glasses’ lens thickness also. If you want to get a pair of prescription glasses online, Koalaeye Optical is recommended. It is an online optical store and provides all kinds of eyeglasses, sunglasses and frames. Besides, these glasses are stylish and cheap. If you purchased, the glasses will be mailed to you with great convenience.



The inadequacies of bifocals

The field of vision is smaller than that of the single vision lens, especially for the close view. For example, reading and reading newspapers need to make it coordinated with the head movement, there are optical defects of image jump and image displacement. There is a boundary, and it is easy to be seen that wearing a bifocal lens exposes age. Bifocals clearly demarcate the near and far regions, affecting appearance and vision. And when far view and close view change, the objects will jump. Because most myopic patients have a lag in the adjustment response, wearing bifocal lenses not only does not delay the development of myopia but has side effects. Therefore, bifocals are not suitable for teenagers to control myopia, and only a few special patients need to wear bifocals.


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.



Application of titanium alloy

Titanium alloy is mainly used in aircraft engine compressor parts, followed by rocket, missile, and high-speed aircraft structural parts.By the mid-1960s, titanium and its alloys were already in common industrial use, making electrodes for industrial electrolysis, condensers for power stations, heaters for petroleum refining and seawater desalination, and pollution control devices.Titanium and its alloys have become a kind of corrosion-resistant structural material.In addition, it is used to produce hydrogen storage materials and shape memory alloys.

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