Is there any difference between being expensive and cheap for myopia?

Expensive glasses are made of good material, fine workmanship, comfortable to wear, high-quality lens technology, the more expensive the lens is relatively thinner, and it is more beautiful, the lens is relatively thin, the lens is very thick, the thinner lens is also lighter to wear, and the lens is relatively high, the lens is very heavy, not beautiful and not light, some brand lenses are high, expensive, because the production process is relatively fine, the coating process is also very good, and it also has the effect of putting blue light. Blue light protection is also a bit more expensive than lenses that don't.

Expensive glasses, there are also differences in materials, titanium, ***, tortoiseshell and other rare materials The beauty and comfort of these materials are much better than cheap ordinary alloy plastic materials. You get what you pay for, you get what you want, and within your own ability, choosing the best product is also a kind of love for your eyes.

The main difference between the two is that the flap is cut in a different way. The cheaper methods are mainly manual flap resection, which is slower to recover, about a week. Like the more expensive ones, it is currently femtosecond, which is fully automatic or semi-automatic flap cutting, and the recovery in this way is faster, and it can be seen clearly the next day.

Nowadays, laser surgery is relatively mature, if you choose a regular hospital and follow the doctor's instructions after the preoperative basic examination last night, you can consider the choice method yourself, and you don't have to worry about any of them now. Hope it helps

The materials used are different, the lens coating effect on the net is not good or there is no coating, the light transmission is poor, and the ordinary glass is used, which will be much heavier, so it is so cheap. Glasses or go to a physical store to learn about the specific material and coating, and it is recommended to go to a regular medical institution for comprehensive optometry for the first time. You can go to Guiyang Aier Eye Hospital, which has won awards for many years and has been successfully selected as a constituent stock of the CSI 300 Index and the MSCI China ** Index.

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, farsightedness glasses, reading glasses and astigmatism glasses, and other types of glasses include goggles, sunglasses, swimming goggles, etc., which provide various protections for the eyes. Glasses are both a tool to protect your eyes and a beauty ornament.

If you want to know more about glasses, we recommend Guiyang Aier Eye Hospital. Through continuous practice and on the basis of fully absorbing international high-quality medical management experience, Guiyang Aier Eye Hospital has successfully explored a set of ophthalmic hospital chain management model that adapts to China's national conditions and market environment - "hierarchical chain", giving full play to the advantages of talents, technology and management, improving the quality of diagnosis and treatment, improving medical services, and optimizing doctor-patient communication. [Welcome to click to learn more].

First, the cost of the Internet is lower, there is basically no venue fee and labor cost, and only one customer service is needed. The venue fee, decoration cost and labor cost of the physical store are all included in the product.

Second, most of the glasses on the Internet belong to the finished glasses produced in batches, so the ** is very low, just like the reading glasses sold at the stalls. Most of the glasses in the optical store are customized according to the number of glasses of the glasses, so they are expensive.

Third, the same as above, the quality of glasses cannot be guaranteed at the same time, and the after-sales service is not as good as in the physical store.

If it is a direct factory online, the cost of wholesale, storefront, warehousing, sales, and tax payment will be much lower. However, because of the low cost of online things and the low cost of counterfeiting, consumers can't get the physical object before they buy it, and it's easy to make high-imitation, copycats, and defective products, so it's possible that the too cheap ones are fakes. At present, JD.com has JD.com endorsement, and the probability of fakes is much smaller; And those franchise stores are difficult to guarantee whether they are real or fake.

If you can return it freely, then you can buy it back to see the authenticity, and return it if you feel unreliable.

This requires going to the hospital for accurate optometry, and then choosing a moderate number of glasses to wear comfortable glasses.

If there is a problem with vision that affects daily vision, then in addition to glasses correction, you should also pay attention to:

1. The time of close eye use should not be too long, every 40-50 minutes, you should take a little rest for 3-5 minutes, and look into the distance to relieve visual fatigue.

2. Read and write, play with the computer, maintain a correct posture, the height of the table and chair should be appropriate, and the distance between the eyes and the reading materials should be about 33 cm.

3. Mix whole grains, meat and vegetables, eat more vegetables and fruits, and don't eat partially. Lack of vitamins in food is prone to night blindness and dry eye disease, and lack of trace elements chromium and calcium in food makes it easy to suffer from myopia. In addition, it is also necessary to pay attention to regular supplementation of eye vision nutrients, not from the nutrients required by the eyes, enhance the anti-fatigue ability of the eyes, and better protect the eyesight.

Fourth, when reading and writing, the light should be moderate, not too strong or too dark, and the light should come from the left front, so as not to obstruct the vision of the hand shadow. The light should be soft, if it is incandescent, it should be between 25 and 40W, and it is not recommended to read in the sun. Because the intensity of light has a direct impact on pupil dilation, too strong light will increase the intensity of eye accommodation, aggravate the intensity of eye labor, and it is easy to cause myopia after a long time.

Generally, desktop lamps should be less than 40 watts.

5. Avoid reading while walking or reading in a walking car. Because the carriage is shaking, the body is shaking, and the distance between the eyes and the book cannot be fixed, the burden on the glasses will increase. Often, this is likely to lead to myopia.

6. Actively participate in physical exercise to enhance physical fitness. As the eyeball follows the target, the ciliary muscles continue to relax and contract, and the synergistic effect of the extraocular muscles can increase the blood perfusion of the eye, promote the metabolism of the eye, and thus reduce eye fatigue. Moreover, the quality of physical fitness is also closely related to the occurrence of myopia in children.

Malnourished and weak children are prone to myopia.

7. Insist on doing proper eye exercises. By massaging the acupuncture points around the eyes to enhance the blood circulation of the eye socket, improve neuronutrition, eliminate the excessive congestion in the eye, and achieve the purpose of relieving eye fatigue, it is conducive to the prevention and treatment of pseudomyopia in adolescents, and is a good way for adolescents to self-care their eyes.

8. Eat less candy and high-sugar foods. Too much sugar will produce a large amount of acidic substances in the blood, and the acid will combine with the salt in the body, especially calcium, resulting in a decrease in blood calcium, which will affect the toughness of the eye wall, make the eye axis easy to elongate, and promote the occurrence and development of myopia.

Because the myopia glasses on the Internet do not require the person to be present for optometry, and there are many other links, the cost is much lower, so it is much cheaper than the physical store.

I also see the myopic glasses you mentioned. **It's really ridiculously cheap, and some even cost a few bucks. You don't even need to think about it, it must be a different thing from what you see.

He's probably just a magnifying lens. Therefore, this may still have a great impact on the eyes, so it is still necessary to buy better myopia glasses.

In fact, it is also possible that the glasses from the optical store were bought from the Internet. Spectacle lenses are not expensive in the first place, but the rent of the optical store may be tens of thousands of dollars per month, and the wool comes from the sheep. Of course, the salary of the clerk must also be calculated, and then the cost of glasses is high.

That's why online shopping is so popular now.

The reason why myopia glasses on the Internet are sold cheaper, many of them are not of good quality, and if you buy them back, basically many of them are unusable, or the quality is particularly inferior.

One is that the cost of sales on the Internet is relatively low, and the other is that the quality on the Internet cannot be guaranteed to be exactly the same as in the store.

The composition of the company, from the perspective of science, mainly includes production costs, operating costs, labor and management expenses required for processing, research and development costs, transportation costs, and related taxes and fees.

The myopia glasses on the Internet are fixed to Du Fu, and then, you will wholesale a large number of products that are not specially customized, so they are cheaper.

If you want to be smart with glasses, you are asking for trouble, because you will never spend less money and can't match good glasses, and you can also wear glasses on the Internet and it is very cheap, cheaper than regular lenses from the factory, what do you think you can match? When you buy a mobile phone, you need to look at the configuration, when you buy a car, you need to look at the configuration, and the lenses also depend on the configuration! Refractive index, material, film, brand, this is called the four major pieces, in addition to the same product is also divided into A goods and B goods!

As another person said, the camera lenses are all made of the same material, but the difference between the effect and the money is also very large!

The frame is good or bad, put aside the factors of asymmetry and flaws.

The workmanship of the material affects the durability and the difference in the length of time you wear it, but at present, the replacement cycle of glasses is only 1-2 years.

For the eyes.

The accuracy of the prescription and the quality of the lens have a greater impact.

Lenses** depend on several aspects:

1. Brand. At present, the more famous lens brands are Nikon, Essilor, TAG Heuer, Zeiss, etc., among which Zeiss is good at glass lenses. **A pair is basically more than 1,000 yuan.

2. Material. The slight difference in the material of the same plastic lens results in a different refractive index. This means that the higher the refractive index of the same power, the thinner the lens. Refractive index of resin sheets. Of course, the higher the refractive index, the more severe the dispersion. 3. Special lenses.

Some progressive lenses for the elderly, lenses with astigmatism, and self-tinting lenses are more expensive than regular lenses.

4.Optical properties of the lens.

Good lenses have good optical performance, poor lenses may have impurities, or they may not refract light well enough, which is harmful to the eyes, which is the same principle as the super expensive lens of a good camera (people who don't understand will think: it's just a piece of glass, why buy tens of thousands), and good lenses may also have the function of anti-ultraviolet rays.

Myopic glasses. There is no need to match the most expensive one, but it should be the most suitable for you. When fitting glasses, pay attention to the choice of material for glasses. Generally, spectacle lenses are divided into resin, glass and crystal, and both lenses and frames should have a shelf life.

If lenses, frames, and frames are imported materials, they should have an import commodity inspection certificate.

Plastic lenses. Because of its light weight, it is very popular with students, but the maintenance requirements are also relatively high. If the temperature exceeds 60 degrees Celsius.

At high temperatures, due to the different expansion rates of each layer, the lens will be damaged to a certain extent, and then become blurred, and its wear resistance coefficient is significantly lower than that of glass lenses, so consumers should pay attention to the protection of lenses when they usually wear them.

The requirements for each surgical method, equipment, consumables, and technical parameters are different, that is, the cost price is different, and there will naturally be some differences.

1. Equipment: German Zeiss equipment, the current equipment pricing is the highest among all laser surgery equipment.

2. Surgical technique: It is also one of the relatively new and advanced surgical methods.

3. Expensive consumables: In terms of consumables, the cost price is the highest among all myopia laser surgery consumables.

4. High requirements for experts: At present, the technical requirements for experts in ReLEx surgery are also the highest among all laser surgeries, and the requirements for experts are even higher, which means that not all refractive surgeons can do ReLEx surgery. Therefore, it also increases the cost of the operation itself.

5. Each surgical method will have its own advantages and characteristics, and the main feature of ReLEx is a small incision, which retains the integrity of the corneal surface and the biomechanical stability of the cornea to the greatest extent.

Standard excimer laser surgery: The cost of the operation is 9000 yuan for both eyes. The mechanical lamellar knife flap requires high corneal thickness.

Personalized excimer laser surgery: The cost of the operation is 12,000 yuan for both eyes. Guided by wavefront contrast or corneal topography.

Femtosecond laser myopia surgery: The cost of surgery is 15,000 yuan for both eyes. The femtosecond laser is a new computer-controlled bladeless surgery with good controllability, high precision and wide range of applications.

Personalized femtosecond laser: the cost of surgery is 18,000 yuan for both eyes. Femtosecond laser surgery guided by wavefront phase contrast or corneal topography.

ICL lens implantation surgery: the cost of the operation ranges from 20,000 yuan to 30,000 yuan.

The cost of surgery will vary depending on the region and the level of the hospital selected, and there is currently no uniform fee, which is subject to the local hospital.

Myopia surgery is mainly for adults over the age of 18, as long as the surgical requirements are met and the preoperative examination is normal, the surgery can be performed.

Minors under the age of 18 are still in the stage of vision development, and the adjustment of the eyes is strong, and myopia can be treated by taking drugs. It is recommended to take Leyan Vision Nutrients, take it with warm water, and insist on taking it for a period of time, myopia will gradually be controlled or improved, and you can avoid considering adult surgery.

Myopia surgery has been developed for 20 years, and the technology is very mature, but there are risks associated with surgery, so it is necessary to be cautious.