Myopia has become a very serious health problem in my country. Statistics show that in 2021, the overall myopia rate of children and adolescents in my country was 52.7%.

The most common way to correct the vision is to wear glasses (including contact lenses). The contact lenses include corneal contact mirrors, cornea shaping mirrors and scleral mirrors. So what is the difference between different glasses and how to categorize, let's take a look together!

(1) frame glasses

Classification suggestion: 90049090

The frame of mirror frames and frames is attributed to 9003, and the glass lenses that are not processed by optical processing are attributed to 7015, and the glass lenses processed by optical processing are attributed to 9001, which constitutes the non -glass lens 9001 of the optical element.

(2) Corneal contact mirror

A cornea contact mirror, also the most common contact lens, is a lens that is worn on the corneal to correct vision or protects the eyes. It includes three types: hard, semi -hard, and soft according to the software of the material. The principle is through the refraction of the light of the lens to make the image appear on the retina, and to a certain extent replace the zoom function of the eyeball, to achieve the effect of clearing the objects of different distances on the retina. Invisible lenses not only have brought great improvements to patients such as myopia, hyperopia, and astigmatism in terms of appearance and convenience. In addition, it has also played special effects in controlling adolescent myopia, astigmatism development, and special eye diseases.

Classification suggestion: 90013000

(3) Corneal shaping mirror

The corneal shaping mirror originated in the United States. After 50 years of development, it has been applied in 34 countries around the world. Highly oxygen hard contact lenses worn on the corneal of the eyeball play a role of temporarily complicated the wearer's vision through special design. The corneal shaping mirror is a high -transparent oxygen lens that is specially designed by the inner surface of the inner surface. Wearing a certain time, the physical principle of hydraulic pressure is formed through the tears between the lens and the cornea to achieve the center shape of the cornea and temporarily reduce myopia temporarily. The role of the degree. Corneal shaping mirrors can not only correct myopia, but also slow down the growth of myopia. The corneal contact mirror in the above can only correct myopia and cannot control the growth of myopia.

Classification suggestions: 90185000.

(4) Scleum mirror

The scleral mirror is a special corneal contact mirror, also known as the scabbal hard peroxide corneal contact mirror. Known as a scleral mirror because the lens crosses the corneal part like a bridge, does not contact it, and has been extended to the sclera (the white part of the outer eyeball wall formed). Compared with ordinary corneal contact mirrors, its diameter is larger than the cornea, and the diameter range can be from 14 mm to 20 mm. The sclera mirror is suitable for daily wear in various eye conditions to solve clinical pain points. For example, improve visual quality, protect corneal and vision correction, and vision correction can be used for correction of myopia, hyperopia, astigmatism, and old vision.

Classification suggestion: 90013000

Although wearing glasses can control the development of myopia and astigmatism, I still hope that everyone can develop good eye habits. Do not look at things closely for a long time, do not lie down or lying on your stomach, lighting light or not. Too weak, maintain a certain outdoor sports, insist on eye protection, and protect your eyes.

Friendly reminder: The classification suggestions are for reference only, and the classification of legal effect shall prevail shall prevail in relevant laws, regulations and the official documents of the General Administration of Customs.

Reprinted, please indicate the source "Customs Published" (the picture is from the Internet)

Supply/ Shanghai Customs

Preparation/ Tao Yong

Grade school/ Sun Weiru, Lei Yan

Edit/ Dai Jun

Art Editor/ Wei Hao

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