The difference between orthokeratology lenses Euclid and OK lenses

I've also heard that orthokeratology lenses are worn at night to adjust vision, and you don't need to wear any glasses during the day to see clearly.

I strongly agree with the above statement, many children are now using orthokeratology lenses to control the power of their eyes from continuing to grow, and they do not need to wear any glasses during the day.

The difference is very big, OK lens is a product that has long been banned by the state, and orthokeratology lens is a class three medical device belonging to the country, and the lens is very different from the design process, material, oxygen permeability coefficient, applicable population, etc.

In 1999, e&e Optics' rigid gas permeable contact lenses for orthokeratology (hereinafter referred to as orthokeratology lenses) became the first product of its kind to obtain the import registration certificate of the People's Republic of China. It was also one of the first batch of orthokeratology lenses approved by the U.S. Food and Drug Administration. For many years, the sales of contoured lenses have been the highest in the United States.

In order to better serve Asians, as early as 1995, it took the lead in setting up a window company in Asia, specializing in the relationship between shaping lenses and the cornea of oriental people, and how to modify the lenses designed in the United States into lenses suitable for oriental corneas. Became the first company in Asia to specialise in the research and promotion of plastic shaping lens products. In 2000, he established an Asian headquarters for lens design and production in Hong Kong.

As a result, the rigid gas permeable contact lenses designed and manufactured by e&e optics are exported to all parts of Asia and Africa, including China, Taiwan, Hong Kong, Australia, Japan, South Korea, Singapore, Malaysia, Thailand, the Philippines, Sri Lanka, Yemen, Egypt, South Africa and ......Since 2000, the product has been the No. 1 selling plastic lens in Asia.

MCT technology orthokeratology lens is a type of orthokeratology lens that uses MCT technology to design and fit based on the digital digital precision of different individual corneas. Main differences between MCT technology orthokeratology lenses and OK lenses::

First, in terms of design basis, MCT technology orthokeratology lenses are accurately designed with digital technology, and there is no need to try them on, and OK lenses need to be tried on repeatedly.

Second, in terms of visual effect, the visual quality of wearing MCT orthokeratology lenses is higher than that of OK lenses. This is because the lens design is based on the design principles of laser surgery.

Thirdly, in terms of the ability to control the development of myopia, MCT technology orthokeratology lenses have better stability than traditional OK lenses because they do not need to be adjusted and stopped frequently.

Fourth, MCT can be used for a variety of vision problems, and OK lenses can only be used for low to moderate myopia.

The difference between defocus soft lens and OK lens is that the material is different, the wearing time is different, and the principle is different.

1. Material. A defocus soft lens is a soft lens that is highly hydrophilic and has oxygen permeability. Orthokeratology lenses, on the other hand, are made of harder material, similar to plexiglass, and have no elasticity.

2. Wearing time.

Defocus lenses are generally worn during the day and removed while sleeping, while orthokeratology lenses are worn at night and removed during the day.

3. Principle. The purpose of defocusing the lens is to delay the development of myopia by turning hyperopia around the retina into myopia, so as to prevent the growth of the eye axis and delay the development of myopia, and there are no special requirements for corneal morphology, myopia degree, age, etc.

Orthokeratology lenses usually correct vision by flattening the corneal shape and changing the corneal curvature, but they are only suitable for myopic patients with low myopia, teenagers, etc., and have certain requirements for the cornea.

When using defocus soft lenses and OK lenses, you need to pay attention to suspicious matters:

Glasses should be taken care of, and when not in use, they should be kept out of the reach of children to avoid damage. It is also necessary to pay attention to eye rest, do more eye exercises, reduce the use of mobile phones, TVs and other products, and avoid overworking the eyes. It is also necessary to engage in appropriate physical activity to improve one's own resistance.

The English name of orthokeratology lens is orthokeratoloy lens, abbreviated as ok lens.

However, although the names of the OK lenses that everyone was familiar with 10 years ago and the orthokeratology lenses that everyone heard about today are the same, the difference is still relatively large.

1。In terms of materials, the oxygen permeability of the previous OK lens was not high enough, but now the orthokeratology lens is made of high oxygen permeability material, which has no effect on the respiration of the cornea.

2。Modern plastic mirrors are designed with 4 arcs and 5 arcs, and the CNC lathe has a successful cutting, and most of them were polished after cutting in the past.

3。Modern plastic lenses are approved by the State Food and Drug Administration after clinical research, and most of them were not approved before.

4。After 10 years of research and development, the skills and experience of the fitting staff are also different from the previous ones.

5。The equipment is also much newer than before.

Therefore, to sum up, although the names are OK lenses, or orthokeratology lenses, the connotation has changed dramatically.

At present, the best technology is the OCT technology designed by MCT technology, which is different from the traditional OK lens.

Orthokeratology lenses are also called OK realms.

Are orthokeratology lenses OK lenses?

Are orthokeratology lenses OK lenses?