Why do the new glasses turn into an arc when looking at things near me? Is it normal 10

is normal, the possible reasons are:

1. The prescription may be much longer during this period.

2. There may be astigmatism.

3. It may not be easy to adapt to new glasses.

4. You may be using your eyes a lot lately.

Adjustment method: 1. Try to choose a small frame with glasses in the future, so that it is easy to adapt.

2. Protect your eyes and try to make your prescription a little longer.

3. Don't match the power too high, and don't wear glasses during the period when you use your eyes too much, because the measured power is not accurate.

Is it that the power is much longer this time, is there astigmatism?

You may have sensitive eyes and are not easy to adapt to new glasses.

There are three reasons for this:

1. Add astigmatism

If the new lens adds astigmatism, it is easy to distort vision, and it usually takes a few days to adapt to the new glasses.

2. The visual focus of the lens and the focus of the eye are not aligned.

Ordinary lenses have only one specified power, while progressive lenses have many different powers, which are regularly distributed on the lens surface.

Frame curvature

Effect of lens curvature and astigmatism axis differences.

1. Interpupillary distance is wrong.

Lenses have a certain curvature, whether it is spherical or aspherical lenses, things will be deformed to different degrees when viewed from different angles.

The aspheric surface is within the range that the human body can adapt to, while the spherical surface may feel the deformation of things more obviously. A wrong interpupillary distance means that you are looking through the lens "from the side", so there will be some degree of distortion. Depending on each person's sensory sensitivity, the results are different.

2. Refraction is accompanied by astigmatism.

If there is an error in the power and axis position of the astigmatism, the view will also be distorted and blurred. Therefore, a double light examination is required.

3. The lenses are too large.

The diameter of the substrate of the lens is limited, and the "interpupillary distance" that can be customized when adapting to different frames is also limited. Therefore, if you choose the wrong frame, it will also cause inaccurate interpupillary distance. And some merchants are afraid of losing customers, so they make a wrong interpupillary distance to users.

When the user says that he is uncomfortable, he uses "new glasses, just get used to it" to deceive and prevaricate the user.

4. The distance between the eyes of the mirror and the angle of forward inclination are wrong, or there is a big difference with the old glasses.

Wearing glasses is by no means a prescription measure, and the lenses can be customized. The user needs to wear the new frame, measure the eye distance and forward tilt angle, and compare it with the old glasses before making a decision on whether the lenses are optional or not, and then they can refraction and prescription.

Most optometrists in optical stores in China do not do this or are not able to do it accurately, resulting in many users still uncomfortable wearing new glasses under the same prescription.

5. Caused by the slippage of the frame.

Lenses are made up of prisms. When the glasses are slided, the visual center of the eye and the optical center of the lens are shifted. This means that the eye will be distorted when looking through a prism.

Therefore, be sure to wear "non-slip glasses", do not let the eyes use the prism to see things for a long time, otherwise not only will the things be deformed, but over time, the power will skyrocket.

Whether the glasses are suitable depends on the accuracy of the eye, the position of the optical center, if the new glasses are uncomfortable after wearing, and it is still not suitable for a week, the glasses should be tested for problems to avoid eye fatigue or myopia.

The prescription of your eyes is not accurate, and the prescription of your glasses should not be suitable for your eyes.

There are two possibilities.

1. The visual focus of the lens polishing does not correspond to the focus of your eyes, and your interpupillary distance will be tested before polishing.

This is due to spherical aberration, and it is normal for concave lenses to have barrel distortion and convex lenses to produce pincushion distortion.

Generally speaking, lens distortion is actually a general term for the inherent perspective distortion of optical lenses, that is, the distortion caused by perspective, which is very unfavorable to the imaging quality of the first class, after all, the purpose of photography is to reproduce, not exaggerate, but because this is the inherent characteristic of the lens (convex lens gathers light, concave lens diverges light), so it can not be eliminated, can only be improved.

The optical design and materials of high-end lenses are exquisite, and the optimal design of the lens group and the selection of high-quality optical glass (such as fluorite glass) to manufacture lenses can reduce the perspective distortion to a very low degree.

It is possible that the photometry is wrong.

If astigmatism is added, it means that you did not have astigmatism in the first place, and he gave you the wrong refraction.

This has nothing to do with whether it is aspheric or not, the biggest difference between aspheric and spherical is that the lens is flat, bowed, and the clarity of the object is not much different, and it is not easy to see if you don't look very carefully.

80% of the problem is the glasses, and it is still on the store's side, you can take the invoice to them.

Landlord, have you solved this problem? I'm just like you.