Nowadays, people's life pressure, overuse of eyes and carelessness are all bound by "myopia", but in the street, we can see that many people are not bound by the shackles called "frame glasses". There are many styles of contact lenses. What are the different types of contact lenses that are often mentioned? Dr. Zhao Feng, a refractive doctor at Zhongshan Eye Center of Sun Yat-sen University, gave a comprehensive explanation in an online interview with family doctors. What is the difference between soft contact lenses, RGP and OK lenses? Dr. Zhao Feng pointed out that all three kinds of lenses belong to contact lenses, which have the purpose of correcting vision and do not need to wear glasses.

1、okmirror

OK glasses are warning film contact lenses, which are worn at night. There are two advantages. The first advantage is that you can wear OK glasses when sleeping at night, and you can correct your eyesight without them during the day. The second advantage is that it can control the increase of myopia among teenagers, so people with these two needs can wear OK glasses.

2、RGP

RGP is a kind of warning film contact lens, which is used during the day. Another function of RGP is that if you have high or irregular difficulties or special diseases, you can consider wearing frame glasses, and wear RGP glasses when you can't solve the vision problem.

3. Soft contact lenses

Common soft contact lenses such as pupils.

Can wearing contact lenses hurt your eyes?

Dr. Zhao Feng said that any treatment method has both good and bad sides, and the impact on the eyes is reflected in the following aspects:

1, eyes may be physically damaged.

It is a foreign body that directly contacts the black pupil, intima, cornea and conjunctiva in the eye. If you accidentally take it off, it will cause physical damage to your eyes and scratch your eyelids.

2, bacterial infection, eye hypoxia

There is a layer of tears in front of the cornea, which is the function of the lens. After foreign body implantation, there may be problems in the circulation and exchange of tears. Normally, if we blink, we will apply it again on our eye watch. If we put in contact lenses, we can't apply them. At this time, if tears flow in it, it may cause bacteria infection or lack of oxygen in the eyes.

3, conjunctivitis, resulting in conjunctival injury

There is a thin transparent film in front of the white eye pupil, which contains many blood vessels. If the care is improper or the chemical components in the contact lens care solution will stimulate the conjunctiva, causing conjunctivitis and conjunctival injury.

4. Corneal injury

The more serious impact is corneal damage. Because it will affect vision, others will not affect vision decline.