What are the main correction methods for myopia at present?

Release time：2018-09-08 09:14

First, wear frame glasses.

Frame glasses are simple, safe and economical. They are suitable for the vast majority of people of all ages. They are the most widely used myopia correction methods at present. The lens materials of frame glasses are mainly glass and resin. The glass has high hardness, wear resistance, good refractive index (high refractive index), but it is heavy and fragile. The resin is light, easy to break, but easy to wear. At present, the manufacturing technology and lens design of resin lenses have overcome their shortcomings and have been more and more widely used.

Intended for:

Its limitations are small and widely used.

Two. Orthokeratology

Orthokeratology, originated in the United States, has been applied in more than 60 countries in the world after 50 years of development. It is a kind of corneal plastic lens designed with a special inverse geometry. Its inner surface is composed of several arcs. The distribution of lenses and tear layer is uneven. The resulting hydrodynamic effect redistributes corneal tissue, changes corneal geometry, and wears it in front of the cornea during sleep, gradually flattens corneal curvature and shortens the axial length of the eye, thus effectively changing the refraction of the eye and preventing the development of myopia. Users do not need to wear myopia during the day. You can have good naked eyesight.

Intended for:

1, age 8-40 years old, do not want to wear frame glasses myopia patients;

2, students with myopic degree increasing;

3, wearing glasses with glasses causing discomfort or distortion of the eyes;

4, the college entrance examination, joining the army or military academy and those with poor eyesight;

5, some special occupations: athletes, divers, pilots, actors.

Three. Laser surgery

Laser surgery: that is, excimer laser surgery is often said, its principle is similar to corneal plastic surgery, correction of myopia by changing the corneal refractive power. This technique is to use excimer laser to refractive ablation of corneal subpetal stroma, destroy the corneal primitive tissue, thereby changing the diopter, so as to correct myopia. The difference between the two is that corneal plastic surgery is a non-surgical and non-invasive method, while excimer laser surgery has a large defect of traumatic surface.

Adapt to the crowd:

1, over 18 years of age, and can withstand the risk of failure of excimer surgery;

2, if you wear contact lenses, soft lenses should be removed for 2 weeks, and rigid lenses should be removed for more than 4 weeks.

3. In recent two years, the myopia degree is relatively stable, and the degree of myopia is not more than 50 degrees per year.

4, there are no such diseases as excimer surgery, such as cardiovascular diseases.