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Mar 15,2024

The dangers of poor quality eyeglasses for your eyes

Inferior glasses production equipment is simple and low-cost, so the price is low, but inferior glasses are not good for patients to bring clear vision, and even make patients feel uncomfortable, bring low vision, distortion of vision, visual fatigue, irritation symptoms, allergies and other corresponding problems.

The dangers of poor quality eyeglasses for your eyes

Mar 15,2024

Standards for UV protection in sunglasses

Standards for UV protection in sunglasses include the following International standard. The EU standard EN1836:2005 requires sunglasses to filter more than 99% of UV radiation.

Standards for UV protection in sunglasses

Mar 15,2024

Difference between polarised and unpolarised sunglasses

The principle is different. The principle of polarised sunglasses is to use the linear arrangement of molecules inside the lens to filter and eliminate all types of eye-damaging glare; non-polarised sunglasses are ordinary lenses plus very fine metal powder used to filter glare to prevent too much sunlight affecting the line of sight.

Difference between polarised and unpolarised sunglasses

Mar 15,2024

Spectacle frame material classification and characteristics

Tungsten-carbon material eyeglass frames are made of aerospace tungsten-carbon material, which has many features such as anti-allergy, super-flexible, high-temperature resistant, anti-static, super-light and so on.

Spectacle frame material classification and characteristics

Mar 15,2024

How to buy glasses

Lens type. Choose the right refractive index for your lenses based on the degree of myopia, generally there are different refractive index options such as 1.56, 1.60 and 1.74. The higher the refractive index, the thinner the lens is likely to be, but not the higher the better and the choice should be based on the individual's degree of myopia.

How to buy glasses

Mar 15,2024

Why is there such a big difference in price for the same glasses?

Brand: Brand glasses have a comprehensive quality inspection system, which strictly controls the appearance of colour, surface quality and strength of frames to ensure the stable quality of products.

Why is there such a big difference in price for the same glasses?

Mar 15,2024

What's with the green stuff in the glasses?

The green stuff on the glasses may be patina, commonly known as copper green, in the form of grass-green clusters or dark green powder. Ordinary metal spectacles, the nosepiece connecting part is made of copper,

What's with the green stuff in the glasses?
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