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por SHINUEYEWEAR
1) What is the refractive index?The higher the refractive index of the material, the stronger the ability to refract the incident light. The higher...
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por SHINUEYEWEAR
With the development of science and technology, the types of glasses are rich and colorful. In recent years, a kind of glasses called progressive m...
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por SHINUEYEWEAR
The definition of high astigmatism in textbooks is that when it reaches 75 degrees, it means high astigmatism, but in practice, when it reaches 150...
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por SHINUEYEWEAR
The diameter of myopia spot lenses is 65-80, the most common is 70 or 75 diameter, and 80 diameter is relatively rare. The central thickness, refra...
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por SHINUEYEWEAR
The so-called "lens distance" is defined as the distance between the inner surface of the lens and the apex of the cornea.The distance between lens...
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por SHINUEYEWEAR
Knowledge of glasses industry1) The myopia lens is a concave lens, which is thin in the middle (cannot be thinner than 1.0mm). The thicker the edge...
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por SHINUEYEWEAR
When the distant parallel light enters the refractive system of the human eye, it forms a focus behind the retina, which is called hyperopia. Use a...
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por SHINUEYEWEAR
1. Do not take off and wear glasses frequently, which will cause frequent activity from the retina to the lens, which may easily cause the degree t...
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por SHINUEYEWEAR
My dear customers,Thank you so much for your interest in our SHINU brand online store. Our brand has been sold in the United States for nearly eigh...
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por SHINUEYEWEAR
When choosing glasses for children, the first thing to look at is whether they are stable and comfortable to wear, then choose the appropriate size...
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por SHINUEYEWEAR
Glasses have gradually become a part of our lives. As more and more people's eyesight continues to improve, glasses have become the personal items...
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por SHINUEYEWEAR
Polarized sunglasses are designed to reduce the glare from surfaces like water, snow, and glass. They can be highly useful for sports, driving, and...
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