Why Won'T The Screw On My Glasses Tighten? | KOALAEYE OPTICAL

Why Won'T The Screw On My Glasses Tighten?

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Pure Titanium Glasses Frame Brand - Perspicilla

Perspicilla is a company specializing in the business of myopia frames, pure titanium frames, optical shops, titanium glasses, and other products.It is a limited liability company and has professional design and production of different styles of 3D glasses.It is a professional product design company.The wonderful design team and professional production team hope to bring customers the most satisfactory products.In the production of the product, the brand adheres to the perfect integration of progressive technology and high-quality raw materials, so its single product not only has excellent quality, and comfort is done well.


The Pros of Progressive Lenses

In this section, we will show you the benefits of progressive lenses.

One of the major advantages of progressive lenses is that the design of progressive lenses blends the prescription. There is no image jump or visible line on the lens. This enhances your comfort with your lenses and can be safer when performing tasks such as driving.

With progressive lenses, you don’t have to switch other glasses frequently. Progressive lenses correct distance, intermediate, and reading vision within one lens. So, it can bring you great convenience.



Do kids need blue light blocking glasses?

1. American Ophthalmological Association

The American Ophthalmological Association clearly stated that it does not recommend any special glasses. The organization stated that there is no evidence that blue light from electronic devices can cause damage to the eyes. The discomfort that many people experience after watching electronic screens for a long time is due to symptoms such as dry eyes and even blurred vision caused by digital visual fatigue. The symptoms of using electronic products are related to how we use digital devices, not the blue light emitted from digital devices. There is currently no clinical evidence that blue light causes damage to the eyes, and measures to prevent blue light may be more harmful than blue light itself. It is too early to take preventive measures against blue light and may have unintended consequences.

2. British Association of Optometrists

The association believes that there is a lack of high-quality evidence to support the use of blue shaded glasses to improve people's visual performance, sleep quality, relieve eye fatigue, or protect macular health. There is no research on the effect of anti-blue eyeglass lenses on the health of the macula.

3. Chinese Journal of Ophthalmology

If the blue light is excessive, that is, the human eye is exposed to high-frequency and high-energy blue light, it will damage the rod cells. However, the rich blue environment with intensive exposure and the normalized environment are two different concepts. Therefore, it is unscientific to equate blue light with retinal damage. Individualized blue light protection guidance and recommendations should be put forward under different conditions such as different ages, health conditions, and working environments.


How to choose blue light blocking glasses?

While trying it on, look at the electronic screen from a distance to see if it stimulates your eyes. Holding the glasses in front of a display screen or under an LED light to see if they reflect blue light on the surface of the lens. It shows that blue-blocking glasses can block blue light. The special blue light flashlight shines on the white cardboard through the lens, the blue light that passes through the blue-blocking lens is noticeably dimmed, while the blue light that passes through the normal lens is not changed at all, which is what the blocking blue light does. You can go to a professional eyeglass shop to detect instruments through the spectrum of professional authority, and the best blue light blocking rate is between 60%-70%.



Buy Prescription Glasses Online Step By Step

1. Before you can buy glasses online, you’ll need a current glasses prescription.

2. Select an online retailer, comparing online retailers like EyeBuyDirect and KOALAEYE until you find the best fit for your needs.

3. Shop for the perfect frames according to face shape, frame favorites, the budget, etc.

4. Once you’ve found your perfect frames, you’ll enter your eyeglasses prescription and pupillary distance to choose the lenses.

5. Read over the fine print on return/exchange policies and product warranties before you complete your order.

6. Having picked your perfect frames, entered your prescription information, added any lens coatings and upgrades, and checked your online retailer's warranty and return policy, it’s time to complete your order.


Where to Buy Anti Glare Glasses?

From the above part, you have learned the benefits of the anti reflective coating glasses. So, you may wonder where to buy them. To do that, you can buy them from the local optical store and online. If you want to buy anti reflective glasses online, you can try Koalaeye Optical, which provides all kinds of glasses, sunglasses, and frames. In addition, Koalaeye glasses are stylish and come at a cheap price. So, if you need to a pair of anti glare coating glasses, try Koalaeye glasses.


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Standard vs Premium Progressive Lenses: What Are Their Differences

In the above part, we have introduced some basic information about standard and premium progressive lenses. So, what are their differences? In this section, we will show them.

Compared with premium progressive lenses, standard progressive lenses require large frames. Otherwise, you will limit your near vision. On the contrary, if you prefer small and less noticeable frames, premium progressive lenses are the better choice.

Compared with premium progressive lenses, standard progressive lenses are cheaper. For most people, standard lenses are affordable.

Compared with premium progressive lenses, standard progressive lenses are suitable for most people including children.

Premium progressive lenses are customized to your eyes and offer a wider viewing area than standard lenses.

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