What are glasses for correcting vision called

When you go for the test, if your eyesight is poor, the doctor will prescribe a pair of corrective glasses. These glasses are very different from other glasses. Moreover, the appearance of this kind of glasses is very strange. Most of them are round in shape and made of metal. Today I will introduce to you the name of this kind of glasses and its function.

Orthokeratology lenses

Orthokeratology originated in the United States. After 50 years of development, it has been used in 34 countries around the world. Orthokeratology lenses are orthokeratology lenses designed with a special inverse geometry, and their inner surface is composed of multiple arc segments. The lens and the tear layer are unevenly distributed, and the resulting fluid dynamics effect changes the geometry of the cornea. When worn on the front of the cornea while sleeping, the corneal curvature gradually flattens and the eye axis shortens, thereby effectively preventing the development of myopia. It is known as "a technology that can control and correct myopia while sleeping."

Wearing process

A standardized fitting procedure is the prerequisite for ensuring the effectiveness and safety of orthokeratology lenses during wearing. The entire process can be divided into the following stages according to the clinical standard procedure:

1) Wearer selection; 2) Eye health examination and record;

3) Standardized optometry; 4) Evaluation and adjustment of orthokeratology lenses;

5) Lens reservation and distribution; 6) Follow-up and problem handling;

advantage

1. Vision can be improved in a short period of time.

2. It is effective in reducing the diopter of myopia, and you no longer need to wear glasses or contact lenses.

3. Easy to operate and use.

4. No risk, other eye functions are not affected.

5. It can inhibit the development of progressive myopia in adolescents.

6. It can meet the requirements of certain special occupations (such as athletes, divers, pilots, actors, students, soldiers, etc.) for long-distance vision.

Early prevention, effective corrective treatment and effective control of adolescent myopia have become important topics in the field of optometry. Some doctors suggest that adolescent patients do not need to worry about the degree of myopia and can wait until they are over 18 years old to undergo corneal refractive surgery. This is actually a negative view. Because before the age of 18 is the period when myopia develops fastest and the learning burden is the heaviest, if no corrective control measures are taken, myopia can easily increase, especially for children with a family history of high myopia. The possibility of myopia increasing by 1.00D~2.00D each year is very high, and corneal refractive surgery is not an absolutely effective and safe method to cure myopia. There are many non-surgical methods for controlling the development of myopia. However, experts at home and abroad have repeatedly verified in clinical practice that wearing modern orthokeratology lenses has achieved relatively definite results.