what is the difference between photochromic lenses and transition lenses? | KOALAEYE OPTICAL

what is the difference between photochromic lenses and transition lenses?

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The correct method for lens cleaning

Wet it with water first, and then add a little detergent or hand sanitizer to each lens. Dip your fingers to the back of the lens, and then scrub with your fingers. Be careful not to use too much force to prevent the lens from being worn out by grit.

The key here is to rinse. First of all, never use hot water, because hot water will cause the lens to expand due to heat, which will crack the film in the resin lens.

Finally, you should rinse with cold water, do not wipe with a cloth, because any glasses cloth or suede can not perfectly wipe the lens, even the more you wipe it, the more indistinct it gets. If there is hard dust in the cloth, it will scratch the lens.


FramesDirect

We are thinking about buying cheap glasses online, but wondering how long it will take to get there, or what the glasses will look like? The secret to getting a good pair of glasses at the right price at the right time is to find a reputable eyewear retailer. They provide attentive customer service, high-quality products, and fair return policies. So where can I get cheap glasses online?

FramesDirect's website provides a range of discounted designer frames for men and women, including Burberry, Coach, Dolce & Gabbana, Prada, and Versace. Frames start at about $40.



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.


Commercial pure titanium eyeglass frame

Commercial pure titanium eyeglass frame gives people a professional, handsome, rigorous attitude. The commercially pure titanium eyeglass frame is generally square, with a simple design. And the style is more versatile, making people a cool and handsome feeling. It is men's preferred choice! And for the display of their professional image, they play a great role!



Features of progressive lenses

With the proper head position, the wearer can have a clear and continuous vision at all distances from the distal point to myopia through the progressive lens. When the eye moves from one area of vision to another, the eye adjustment process is natural and smooth, without any visual fluctuations. With natural vision and better adaptability, it is in line with physiological optics. The mid and near vision area is relatively small: Some wearers may feel that the gradient area of the progressive lens is smaller, which limits the width of the saccadic eye and requires increased head movement in order to achieve the same reading range. At medium and short distances, the wearer needs to coordinate certain head movements.


Accurate optometry is key.

Optometry before wearing glasses is very key. Children's optometry should choose mydriasis optometry. Mydriasis optometry is a method of optometry designed specifically for children. It works by using drugs to completely paralyze the ciliary muscle of the eye so that it loses its regulatory role. So you can check out the child is true myopia or pseudomyopia. During optometry, you should pay attention to let the child as far as possible to relax, so as not to affect the effect of optometry. For the sake of children's health, it is recommended that parents and friends can take their children to a professional optometry place to choose glasses. In addition, do not rely solely on optometry to determine the child's glasses, but to see which degrees are more suitable.


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OVERSIZED FRAMES

These mesmerizing oversized glasses provide facial protection for the eyes and are popular. From the fashion of the 70s to the Hollywood glamour of the early 2000s, it makes you feel confident and protected.

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