When myopia with astigmatism glasses, is the degree of astigmatism added to the degree of myopia, an

The degree of astigmatism cannot be added to the degree of myopia, and the degree of astigmatism is counted as the degree of myopia, and the degree of astigmatism is added to the degree of myopia, which can not achieve the purpose of correcting astigmatism, but increases the burden on the eyes. Ordinary myopia and farsightedness lenses are spherical lenses, that is, they are regular concave and convex lenses, that is, on this mirror surface, no matter from which angle they are measured, the degree of concave and convex is the same. The astigmatism mirror (operator's regular astigmatism) is a cylindrical mirror, that is, there is only a concave and convex degree in a certain axis, and there is no degree in other axes.

If you put the astigmatism.

Fold into myopia and add it on top of the original myopia, which is equivalent to adding the myopia degree to the axis of the original astigmatism, and adding this astigmatism degree to the other axes, so, in fact, your myopia glass.

The degree of myopia increases in all ranges except for the axis of astigmatism, and of course you will feel uncomfortable.

A pair of glasses can meet the requirements of astigmatism and myopia, and do not need to be made separately. Generally available in optical stores, astigmatism does not need to be added to the corrected vision.

If you don't add astigmatism, you can achieve the purpose of correcting your vision, then you don't need to add it, but if you don't add astigmatism, you can't get the ideal correction purpose, then you have to add it.

Generally, the degree of astigmatism is basically added according to the degree of astigmatism, such as the degree of myopia.

Because everyone's vision is different, how to fit glasses needs to be determined after accurate refraction.

There is also myopic astigmatism under the age of 18, which is still in the stage of vision development, and the adjustment of the eyes is strong, and myopic astigmatism can be recovered by taking drugs.

It is recommended to take two packs of Joy Vision Nutrients every day, and insist on taking it for a period of time, the myopia astigmatism will gradually decrease, and the younger the age, the easier it is to recover. In this way, you can avoid the trouble of wearing glasses.

If the astigmatism is high and the wearing is not comfortable, half of the astigmatism can be appropriately added to the myopia, but not all. Mild astigmatism does not need to be added to myopia, and normal fitting is sufficient;

There is this kind of me, but not all. Astigmatism is not very good.

It is not absolute, the principle of glasses is that astigmatism is low, not high.

This is not necessarily, depending on the evaluation of the optometrist, generally speaking, it is okay if the astigmatism is relatively small.

This requires a comprehensive evaluation by an optometrist, and you can continue to understand the specifics, and orthokeratology lenses can be understood.

The whole eye is an optical system, through which the image we see is focused on the retina, focusing on the middle of the macula to form a clear image.

This is now a cylindrical mirror on a certain spherical mirror, and then on the concave surface of the spherical mirror to grind a cylindrical mirror. The spherical mirror is the myopia part, the cylindrical lens is the astigmatism part, and together it is the myopia spherical lens + myopia astigmatism.

Manufacturer-produced. Now they are all produced with molds, and one side of the mold is made into different degrees on different axes, and this degree difference is astigmatism. Opticians can't add astigmatism.

The optician's shop has lenses made by the manufacturer that have been added with astigmatism. That is to say, the optical store has stock, and the stock lenses can be directly selected for glasses if you have your prescription. 'Can astigmatism be removed from myopia lenses if it has already been added?' - No, you can't.

Generally speaking, if the astigmatism exceeds 100 degrees, the prescription of the glasses will be counted in the prescription of the glasses, but if it does not exceed 100 degrees, then the prescription of myopia only needs to be considered when the glasses are dispensed.

However, if the degree of myopic astigmatism has affected daily vision, then it is natural to correct it with glasses in time, and it is also necessary to 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.

Myopia is the degree of myopia, astigmatism is the degree of astigmatism, and it cannot be said together, the prescription of glasses only represents the degree of myopia.

Myopia and astigmatism are not the same concept, these two are measured by degrees and cannot be added together, generally speaking, how much myopia and how many degrees of astigmatism.

There are no such hard and fast rules. The prescription of spectacles depends on the refraction results and the need for glasses.

Myopia is myopia, and astigmatism is astigmatism.

There are already such glasses, which are very common, and this lens is called simple astigmatism lens, or monoscrete for short.

If astigmatism has affected daily vision, it is natural to correct it with appropriate astigmatism glasses.

Astigmatism is a refractive abnormality of the eye that is related to the curvature of the cornea. Some people have a curved cornea in one angle and flatter in others. The cause of astigmatism is that the refraction rate of each meridian of the cornea is inconsistent due to the uneven thickness of the cornea or the uneven curvature of the cornea, so that the light rays passing through these meridians cannot be concentrated at the same focal point, and the light rays cannot be accurately focused on the retina to form a clear image, which is called astigmatism.

Astigmatism generally requires attention:

1 Mild regular astigmatism does not need to be corrected if there is no eye fatigue or blurred vision, but if there is any discomfort above, it should be corrected even if the prescription is not high.

2 Patients with high astigmatism should be corrected with cylindrical scope, if they cannot adapt to all the corrections, they can be given a lower degree first, the common method is to take drugs, usually doctors recommend taking Joy Vision Nutrients, take it with warm water, insist on taking it for a period of time, and the degree can be gradually controlled or even improved.

3 Irregular astigmatism cannot be corrected with a cylindrical lens, and contact lenses can be tried.

Astigmatism is an eye abnormality that is associated with the curvature of the cornea. That is, the normal retina does not show a clear image of objects, which is called astigmatism. It can be corrected on the same lens, and a pair of glasses can solve both problems.

1.Regular astigmatism.

It can be corrected with different cylindrical lenses according to the type of astigmatism and the degree of astigmatism. Convex column lens for farsighted astigmatism, concave column lens for myopic astigmatism.

Mild astigmatism does not need to be corrected if there are no clinical symptoms, and corrective glasses should also be worn if there is vision loss or symptoms of visual fatigue and visual interference.

Children, especially preschoolers, must adequately correct astigmatism to prevent the formation of amblyopia.

Before wearing, it should be refractioned, adolescents and children should be dilated refraction, and it can also be combined with the measurement of keratometer to understand the nature and degree of real astigmatism, and then combined with subjective audition, the prescription of glasses can be determined.

Patients with high astigmatism who cannot adapt to spectacles can be corrected with contact lenses.

2.Irregular astigmatism.

It is not easy to correct with lenses, and can be corrected with contact lenses.

3.Surgery. It is suitable for high astigmatism caused by congenital or acquired eye surgery such as cataract or corneal transplantation, such as excimer laser refractive corneal surgery, laser corneal thermoplasty, cornatotomy, etc.

The principle of spectacle for astigmatism is that the degree of contentment is corrected on the positive axis. For those with high astigmatism and difficult to adapt, a gradual correction process should be adopted.