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About Plastic Frames

It is usually divided into thermoplastic plastics and thermosetting plastics. Thermoplastics can be reworked under heat. Thermosetting plastics cannot. The plastic frame is usually made of nylon or composite material. Although it is a thermoplastic material, at regular temperature will not become soft. The plastics used to make frames are not always thermoplastic, but they can almost always be softened by heating. Thermosetting plastics are usually used only for small parts.

Selectspecs

In addition to Ray-Ban, Vogue、Fendi, and other first-line eyewear brands, Selectspecs also owns many affordable and self-owned eyewear brands, among which Infinity is the representative brand of youth and fashion.

But the texture will not lose to a line brand. And the choice is very rich. The classic black-rimmed glasses, or the stylish metal-rimmed glasses, or the tortoise-shell glasses with a retro vibe, are brimming with youthful fashion.

The fashion sense of Infinity is stronger, in line with the aesthetic of young people today. There are many fashion trend items, very suitable for building your personal image. There are many styles of glasses, such as classic black frames and popular gold frames.

How to Test Computer Glasses (Clear Glasses)

First, we will show you how to test computer glasses with clear glasses.

1. Ask for Blue Light Glasses Brand Spectrum Report

To find out whether your blue light glasses are the best computer glasses, you should contact the company you bought them from and ask for a spectrum report. It will show you how much blue light your computer glasses can block.

After sending the spectrum report to you, you should make sure that your computer glasses are able to filter at least 30% blue light, otherwise, they are unsafe.

2. Use the Lens Reflection Test

As for how to test computer glasses, you can use the lens reflection test. You can see what color the light is that reflecting off the lenses.

If it reflects the blue light, they are filtering some blue light. If the reflection is violent or purple, the computer glasses may be not effective.

This is a good way for you to perform a blue light test at home.

Advantages of Metal Frames

The metal frame of eyeglasses conforms to the use performance of the frame. They need the material to have high fracture strength, enough plasticity, toughness, and good elasticity. And after the disappearance of the external force, they can restore to the original shape. This is the regular demand for the high elasticity of the metal frame. They must be able to withstand the atmosphere and human sweat daily corrosion. Usually, the corrosion resistance of pure titanium eyewear will be better than other eyewear. Some glasses will have a variety of wonderful grinding designs, and the material must have high plasticity.

Why My New Glasses Give Me a Headache?

The new glasses make me dizzy or headaches. You may have these symptoms when getting a new pair of glasses. Why do the new glasses give me a headache? When getting used to the new glasses, your eyes and brain have to work harder to see clearly through your new lenses. The more your strain to see, the more likely you are to get a headache.

So, how long to adjust the new glasses? It may take a few days. If you still feel uncomfortable after wearing the new glasses for a few weeks, you should ask for the eye doctor or the optician to check whether your glasses are made correctly and check whether your prescription is correct.

In addition, if you want to get a new pair of glasses, you can try Koalaeye Optil, which is an online optical store and helps you to prescribe your eyeglasses with great convenience. Koalaeye Optical provides various glasses, including progressive glasses, blue light blocking glasses, sunglasses, driving glasses, and different shape frames.

5 Signs You Need Reading Glasses

In this section, we will list some signs you need reading glasses.

1. You are over 40 years old. Everyone’s eyesight changes at a different rate, but most people develop presbyopia in their 40s. Presbyopia is a condition in which the eye strain to focus on nearby objects, which is different from farsightedness, a condition in which you can see distant objects clearly, but objects nearby may be blurry. Farsightedness is usually present at birth, but presbyopia develops during the aging process.
2. If you find that you never seem to have enough light when reading, regardless of the room type or the number of lamps you have turned on, it may be time to get reading glasses. According to a study, a 60-year-old people requires three times as much light as a 20-year old to do the same task.
3. If your eyes get tired when reading or working at your computer, you may need reading glasses. Do you find yourself dozing off at your computer, or do your eyelids get heavy when your reading or do detailed work? If so, you may be developing presbyopia, and you may need the reading glasses.
4. Another sign you need reading glasses is that you are getting more headaches. Consistently straining your eyes to read or focus on craft could give more headaches. A headache right behind your eyes could be indicative of hyperopia. It is important to remember the 20-20-20 rule: every 20 minutes, look at something at least 20 feet away for 20 seconds. If your headaches persist, you should see an eye doctor and have a check.
5. If you see halos, you may need reading glasses. When your lens cannot focus light into your retina, it makes your vision appear blurry. Thus, reading glasses can solve this problem.

Do I need reading glasses? After reading this post, you may have a basic understanding. If you need a pair of reading glasses, try Koalaeye glasses. They are stylish and cheap, and the glasses will be mailed to you with great convenience.

How to adapt to progressive lenses?

People who are prone to motion sickness or have inner ear diseases may suffer dizziness, nausea, vomiting, and other symptoms due to their inability to tolerate the slight deformation of the visual objects, so they need to pay more attention when wearing them. For people who have not worn reading glasses before, it is not recommended to wear graded multi-focus glasses directly because their eyes will not be able to adapt quickly.