Is myopia prevention and control lens really useful?

At present, there are many lenses on the market to control myopia, but the effect is uneven.

Commonly used lenses are introduced as follows:

Orthokeratology mirror (OK mirror):

Advantages: Wear it at night and don't wear frame glasses and contact lenses during the day.

Disadvantages: expensive price, high requirements for nursing operation, and risk of complications due to improper wearing.

The effect of controlling myopia growth: about 60%.

Multi-point myopic defocused lens;

Advantages: it does not affect the adjustment, it can be worn every day, with high comfort, simple nursing and safety;

Disadvantages: you need to wear glasses like ordinary frame glasses, and the longer you wear them, the better the effect;

Control effect: 60%~80%.

Peripheral defocus:

Advantages: simple and safe fitting, the first batch of myopia prevention and control products with defocus concept; At present, the awareness is high;

Disadvantages: blurred periphery;

Control effect: 20%~30%.

Progressive multifocal lenses for adolescents;

Advantages: it has a good effect on the growth of myopia caused by long-term close eye use;

Disadvantages: Patients with normal adjustment may use progressive multifocal frame lens to see near at any position in the channel, so the near attachment cannot be effectively used.

Control effect: 20%~50%.

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