Does Blue Light Affect Sleep? | KOALAEYE OPTICAL

Does Blue Light Affect Sleep?

Choose rectangular glasses based on the shape of your face.

If you belong to the oval face, do not choose the too large or angular glasses frame. And do not choose long or square ones. It will be easy to elongate the face and affect the overall appearance. The shape of a round face is the opposite of a square face, so the buying principle of the glasses is basically the opposite of a square face. You need a more angular one to improve the shape of the face, but you need a square face (elongate) principle, that is, use a lower height, higher temple position of the frame.


Are progressive lenses good for driving?

Progressive lenses can help you see close, far, and anywhere in between. That means progressive lenses are good for driving. So you don't have to change your glasses on the way. With progressive lenses, you can easily see all distances. Standard lenses are more affordable than premium lenses, but premium lenses offer a wider field of view and are ideal for drivers.



Can you repair rimless glasses by yourself?

Splice the broken temple of the glasses into its original position on the glasses. Cut a piece of tape about 10cm long and pass it through the gap between the temple of the glasses and the base of the spring. Place the tape on the inside side of the glasses and tighten the other side with your hands. Then apply the outer tape to the temple of the glasses and press it down with your hand. Cut a piece of tape about twice the circumference of the bottom of the temple of the eyeglasses and stick it around the bottom of the temple of the eyeglasses. Cut a piece of tape about twice the circumference of the upper-middle part of the temple and use it to stick the top of the tape used in the first step. Then a piece of tape roughly twice the circumference of the middle leg of the glasses was used to tape the area between the two steps. Then repeat the previous step, and introduce another layer of tape from the gap on the outside of the adhesive tape. First, cut off a piece of tape as long as the temple of the glasses and stick the end of it to the bottom of the temple at an angle of about 60 degrees. Then tighten the other end with your hand, making it stick upward in a spiral until it covers all the tape in front.


What are the best night driving glasses to buy?

While lights on the road can make for a safer driving environment, they can take a toll on your eyes. If you often drive at night and feel eye strain or difficulty seeing in low light. If two cars are driving opposite each other at night and bright lights are turned on, it is almost impossible for the drivers of both cars to see the road ahead because the light is so annoying to the eyes. You might want to think of wearing a pair of night driving glasses.



Eyeglass frames are stylish equipment.

Since last year, the fashion industry has been experiencing a wave of glasses.Some fashion ICONS, mostly celebrities, are pretending to be short-sighted and wearing clear glasses. Recently, it is not difficult to find people wearing retro style when walking on the road, and retro style has become a popular style little by little. But what you might not notice is that clear glasses are showing off. In reality, clear glasses set off a wave of popularity in Euramerican already. Why did clear glasses become a trend?

Frame enthusiasts may own a dozen pairs of glasses with different colors and shapes. Different clothes go with different frames. It's the same with different hats and bags. The black frame is mature, so it can be used to attend some more sedate occasions. Encrusted diamond frame is in fashion, usually used when shopping, very fashionable. The round frame is the important prop that dresses up to be lovely.


Costco Optical

Costco Optical is staffed by highly trained opticians and is well known in the Optical industry. The Optics division also stocks a wide variety of contact lenses, brand name frames, and sunglasses, and provides the latest high-definition lens technology. Costco now accepts most vision plans.


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Titanium frame machining is complicated.

The elastic modulus of titanium alloy is small, which is easy to produce large deformation, springback, distortion, and vibration in cutting, resulting in poor geometric shape and accuracy of the workpiece. As the surface roughness increases, the tool wear increases. The thermal conductivity of titanium alloy is poor and its thermal conductivity is small, 1/6 of that of 45 steel, so the high heat generated in processing cannot be effectively diffused. It is even harder to use titanium to make glasses. The frames are very thin and a lot of fine work is demanded. It's definitely a challenge for titanium, which is pretty difficult to work with. In addition, titanium alloy frames involve titanium alloy welding technology, which is more difficult.

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