A question about glasses, what kind of value glasses provide

I don't know if you have astigmatism, if the astigmatism is large, you have to wear it for a long time.

The purpose of wearing glasses is to relieve your fatigue when you are concentrating on distant objects for long periods of time. Because your naked eye vision is definitely not good, for example, when looking at the blackboard, if you can't see clearly, and you don't have glasses, you will get tired and cause vision loss. But it's okay to see near with myopia, and it's best not to wear glasses when you look at things within 1-3 meters.

I brought it and caused the power to deepen. For example, when writing homework, be sure not to bring it. Look at the computer without it.

And if your degree is not controlled, it will increase to 600, high myopia, jumping running, etc., which can easily cause retinal detachment, you should ** as soon as possible, at least to ensure that the degree does not increase.

You are still growing and developing, the power of your eyes will develop with your growth, and you must ensure that your writing posture is correct, and you should take a 10-minute break every 50 minutes when watching TV and computers. Contact me with questions.

I have the same prescription as you, and the doctor told me not to wear them as long as you can see, and to wear glasses when you feel that you can't see clearly. Do eye exercises every night, preferably with a little eye drop before going to bed.

If you can not wear it, it will be good for your eyes.

It should be every day, anytime, anywhere.

I have a classmate who has about the same degree as you, he often doesn't bring it, and he didn't get used to it at first, but then he thought he could see it clearly. My prescription is relatively large, at the beginning it was 450 and 400, and if I didn't bring it, I would be like a blind man, so I kept carrying it.

I think it's better for you to go to the hospital, everyone's situation is different, don't mess with your eyes. I'm 600 degrees now, and I regret that I didn't pay attention at the time to make it like this.

Do eye exercises often, participate in more outdoor activities, reduce contact with computers, and pay attention to eye hygiene.

If you are not very old, you can still recover, protect yourself, and be a person with bright eyes.

Keep wearing it, just don't wear it when you exercise, do eye exercises every night, and it is estimated that your eyes can be controlled below 400 degrees.

Sunglasses are a kind of glasses, which are glasses that can block the sun's rays, and they are "labor protection" products to protect the eyes under strong light. Wearing this lens can block ultraviolet and infrared rays, and at the same time, the color of the external environment does not change, only the light intensity changes, as if it is cloudy, and there is a cool and comfortable feeling.

Polarizers are lenses made according to the principle of polarization of light, which are used to eliminate and filter out direct light in the beam, so that the light can be put into the visual image of the eye on the correct light transmission axis, so that the field of vision is clear and natural. It is mostly used for sunglasses and camera lenses.

Differences: Although polarized lenses can filter out many irregular light interferences and avoid the occurrence of dazzling and dazzling phenomena, compared with sunglasses, if the arc of the lens itself cannot be in an optical standard refractive state, the polarizing effect will be weakened, affecting the authenticity of the image, and the durability is poor.

Polarized sunglasses on the market are made of fibers sandwiched with polarizing film. It is different from the optical glass polarized solar simple hand lens, because of its soft texture and unstable arc bending, after the lens is assembled on the frame, the lens is difficult to meet the optical refractive standard, and the vision is loose and deformed. Due to the instability of the arc bend, the lens is deformed, which directly leads to poor clarity of light transmission and image distortion, which cannot play a normal optometric effect.

And the surface is easy to scratch and wear. Not durable.

Summary. Glasses are simple optical devices made to correct vision or protect the eyes, consisting of lenses and frames.

Glasses are simple optical devices made to correct vision or protect the eyes, consisting of lenses and frames.

There are four types of glasses for correcting vision: myopia glasses and farsighted glasses, reading glasses and astigmatism glasses, and other types of glasses include goggles, Taixian Sun Yang glasses, swimming goggles, etc., which provide various protections for the eyes.

Glasses are both a tool to protect your eyes and a beauty ornament.