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The manufacturer of reading glasses told you that you really understand reading glasses

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As the saying goes: an old family is like a treasure! But this "baby" also has an aging day. How can we make this "old baby" continue to shine, so that everyone in our family can spend a happy old age?We know that the eyes are the window of the soul, and most of the information of human beings is transmitted to us by the eyes. With the increase of age, the eyes of the elderly produce an irreversible physiological phenomenon

You may say, buy a pair of reading glasses to wear when you are old! But reading glasses, is it really as simple as you think?Now, let's talk about several mainstream correction methods for presbyopia.Single light reading glasses.This correction method is the most mainstream, the most simple, but also the most non-standard. Because the elderly have saved a lifetime and spend money more frugally, buying reading glasses at roadside stalls has become the first choice for many elderly people.

What are the benefits? It's cheap. You can buy it and take it away without optometry, adjustment, processing or testing. The most critical parts of traditional glasses are omitted. As long as you think you can see clearly, you can buy it!

But at the same time, it is accompanied by eye fatigue and unsustainable vision caused by inaccurate degrees and parameters; Due to the poor quality of the lens and unclear vision, the degree is blindly superimposed upward, which will cause the degree to deepen; So please, elderly people, if you need flower glasses, you still need to find a professional glasses matching institution for detailed inspection!

The presbyopic glasses that have been specially equipped have the degree in line with the actual situation, accurate parameters and guaranteed lens quality, which will bring clear and bright vision to the elderly. This kind of single light flower lens is easy to prepare and has no special use method, so it is favored by many elderly people.

However, since the single light lens has only one degree, the bright vision range is relatively limited, and it can only see objects at a certain distance. Therefore, the elderly can only use it when reading, which is not very convenient for people who need alternating vision between far and near.

Bifocal glasses：This is an upgraded version of the traditional flower glasses, which has a remote area and a near area to meet the people who see both far and near. However, its shortcomings are also obvious. There are obvious boundaries in appearance, which is easy to expose age at a glance. At the same time, there will be "like jumping" at the dividing line. You need to be extra careful when going down stairs or slopes.

Gradient focus glasses：This kind of lens should be the most convenient presbyopia lens at present.This kind of lens has no dividing line, beautiful appearance, does not expose age, and can also have a continuous vision from far to near. For people with remote vision problems and old flowers, this can be said to be a first choice, because no one will like to constantly switch glasses.

But does this sound perfect product really have no defects? In fact, it is not. Because this lens has a bright vision area in the central area, a certain astigmatism area will be generated around it, which will blur the vision on the left and right sides, resulting in a narrowing of the field of vision. When wearing it for the first time, there will be some dizziness and "swimming". Therefore, it is not suitable for those workers who often switch their eyes, such as high-altitude work and librarians.

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