Can Dehydration Cause Eye Flashes? | KOALAEYE OPTICAL

Can Dehydration Cause Eye Flashes?

What Glasses Are Made Of?

In general, most glasses are made of plastic lenses. Why are glasses lenses made of plastic? In fact, plastic glasses are lighter than traditional glasses lenses used in eyeglasses, which means they are more comfortable to wear. At the same time, it is easy to apply lens coatings like anti-reflective to plastic lenses.

Besides, children’s glasses are also made of plastic because it is more resistant to impact. There are four main types of plastics used to make eyeglasses and sunglasses lenses which are plastic, Trivex, polycarbonate and high-index plastics.

The plastic lenses made from CR-39 were first introduced. CR-39 is an abbreviation for Columbia Resin #39, the 39th plastic of that type made by Columbia Resin.

Then the polycarbonate glasses were invented. Polycarbonate became out of this world once it found use in aeronautics. Polycarbonate is a type of plastic that can be produced as transparent and easily shaped, making it great for glasses lenses. Polycarbonate is impact resistant so that they are a good lens choice for kids. And the polycarbonate lenses have 100% UV protection.

Next, high-index lenses are available. High-index lenses have a high refractive index with a thin lens. Although high-index lenses are thinner, they are heavier due to the higher density of these plastics.

So, what glasses are made of? Most glasses are made of plastics. Then how are glasses made? To get the answer, keep on your reading.


How polarized glasses can help you drive

The most important thing about polarized sunglasses is that they can be a good helper when you drive. When sunlight hits your eyes at an awkward angle, these sunglasses will save your life and save you from potential accidents. Polarized glasses can filter out the sunlight reflected from objects such as roads, snow, water, and other objects. It helps to neutralize the effects of reflected sunlight. Polarized sunglasses bring you an incredibly safe driving experience, with almost no interference and no harm to your eyes.

At night, glare and embarrassing lights are everywhere on the road, especially because random drivers come from the opposite side. Some of these driving high beams may disrupt your vision and cause potential accidents. Polarized sunglasses help reduce glare and save your life. Polarized lenses hardly reflect.



Colored translucent frame

Colored translucent lenses have been popular since 2016. Some stars like a warm tan lens. Besides translucent lenses, what's popular this year is that the frames are made in a colorful translucent style. Wearing them can automatically cool down. Stella Mccartney 2020 spring/summer sunglasses are designed with colorful translucent material and a thick frame. In addition, a metal chain is added, which is all the popular elements this year.


Promises and Warranties of Optical Stores

They have a quality guarantee. Under normal use, the glasses will be replaced with the same value free of charge within six months if there is any quality problem attributable to the product itself. If there is any incompatibility within one month, the lenses will be re-checked and replaced with the same quality lenses free of charge. If you are not satisfied with the style of the frame, you can replace the frame of the same value free of charge within one week.



How do I choose the right glasses frames?

Choosing a frame is largely a matter of personal preference. However, in addition to the style, you need to check the comfort level to see if there are problems like ear clips, nose compression, skin irritation, and so on. Please note that if you are highly short-sighted, try full-frame glasses, because full-frame glasses can hold heavier lenses more reliably. Below are a few easy ways to determine which frames would best flatter your face and show off your style and personality.

Step 1: Identify your face shape. Identifying your face shape is a good place to start when it comes to learning how to select frames which will suit your face shape.

Step 2: Choose colors that complement your skin tone. If you have a cool-colored skin tone, opt for shades of black, gray, and blue. If your skin tone is warm, you would benefit from warm colors, such as tan, pink, and red. As always, when you learn how to select frames, it is easy to know which colors suit your skin.

Step 3: Consider your way of living. When considering how to select frames for your lifestyle, one of the most important things is to make sure the frames fit at the bridge of your nose. This will allow your glasses to stay put better. If you exercise often, comfortable, sturdy frames are a must. If you want to look the part at an important business meeting, you can choose stylish frames with a variety of angles. If you need sunglasses for the beach, go for soft, colorful frames that will complement your relaxed vibe.

Step 4: Flaunt your personality.Frames are the perfect way to show off who you are and your personality. In the process of learning how to select your frames, you cannot forget to choose those that show off your personal style. You can find the perfect shapes, colors, or patterns, but those qualities mean very little if you aren’t comfortable.


Pure titanium eyeglass frame is more and more popular among consumers. Because it has the benefits of lightweight, high hardness, corrosion resistance, anti-allergy, anti-fatigue, and so on, so it is regarded as a better choice for fashion by the more and more white-collar elite class. And with the development of titanium materials and increasingly mature processing technology. Nowadays, the market has appeared a variety of pure titanium, β titanium, memory titanium, and other titanium metal-based glasses frames, for consumers to choose from.


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To protect the lens.

Avoid getting chemicals on your glasses, and if you do, rinse with water immediately. If there is sweat and grease on the glasses, they should be washed to avoid corrosion. Do not use clothes or towels to wipe the lenses. Rubbing the lens with a rough cloth can cause scratches on the surface of the lens. So it is best to use special glasses cloth when you wipe the lenses, and when you wipe the glasses, you must hold the glasses on one side of the frame with your hand, and then gently wipe the glasses with the glasses cloth. Remember not to overexert, otherwise, it is easy to cause frame and lens damage.

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