How about zoom reading glasses?

1, the traditional progressive multifocal reading glasses have taken a big step forward compared with ordinary single-lens and double-lens glasses, realizing the primary goal that a pair of glasses can see both far and near, and giving readers another choice. However, the traditional progressive multifocal lenses have many defects, such as narrow field of vision, blurred and irregular images, distorted vision, unclear vision and difficult adaptation. In addition, the short-range visual field is narrow, and focusing on the narrow area for a long time is easy to make both eyes tired. Especially when wearing it for the first time, many people will have many problems, such as dizziness, trembling, unstable walking up and down stairs, blurred vision and so on.

2, zoom is the degree of the lens is not certain, it is based on the degree of your eyes, the degree of the lens will change. Auto zoom is actually auto focus. General autofocus cameras have a CCD sensing stage. Through the analysis of the phase, the single chip microcomputer controls the driving motor to adjust the focal length. Optics, of course, depends on phase induction.

Is smart zoom reading glasses reliable?

Smart zoom reading glasses are actually multifocal progressive lenses, mainly in the upper part of glasses, which are different from the lower part. Use the upper part when looking far, and the lower part when looking close. It is suggested that this kind of lens is suitable for the elderly, because the elderly have presbyopia, and the degree of seeing far and near is different, which can avoid the inconvenience of wearing two pairs of glasses.

Presbyopia is irreversible, and the current medical level cannot be treated safely and effectively through surgery. When presbyopia occurs, you must wear glasses in time. Wearing smart reading glasses can delay the increase of degrees.

Is smart zoom reading glasses reliable?

Matters needing attention in using reading glasses

(1) What needs to be distinguished is that wearing reading glasses in occasions is only suitable for looking at nearby objects, but not for looking at distant or normal things at ordinary times. Wearing reading glasses for a long time at any time will cause dizziness, blurred vision and decreased eye adjustment ability.

(2) Reading glasses should not be worn all the time. With the growth of age, the degree of presbyopia will deepen. It is best to have an optometry every once in a while so as to replace it in time. The life of the lens is also limited, and scratches and aging will occur, which will affect the imaging quality. So don't wear a pair of glasses to the end, it is easy to accelerate the degree of presbyopia.

(3) Can I always wear reading glasses? When you are nearby (for example, reading a newspaper, typing on a keyboard, etc.), put on reading glasses. ), but don't wear it when you are far away (such as watching TV). Wear it when you need it. It doesn't matter how long you wear it.

(4) When the first wearer needs to buy new reading glasses for the first time, he will feel dizzy and uncomfortable, and the font will be obviously enlarged. Except for the first time, most of them are caused by high or uncorrected astigmatism. In this case, you need to re-optometry and audition, buy finished reading glasses according to the new degree, or wear them after matching them.