Magnifying glasses: what are they and how to choose?

The rapid development of technology leads to the fact that in most professions a person constantly has to work with computer equipment, which creates significant stress on the visual system. Unfortunately, in the modern world, not only the elderly are faced with the problem of poor vision, more and more middle-aged and very young people find it worsening, and this trend cannot be ignored.

Many people have to give up their favorite hobby, and even from work. This will not happen if you choose the right magnifying glasses, which will significantly improve the visual perception of small objects and significantly increase the overall quality of life.

It should immediately be noted that magnifying glasses are not a means for cardinal vision correction, but an auxiliary ophthalmic accessory for household use, as well as for use in some professions related to the examination of small details and objects. A modern optical device is a good way out of such situations.

Magnifying glasses combine the characteristics of ordinary glasses and a magnifying glass, at the same time they have a shape almost like ordinary glasses, which does not cause discomfort when using them, and lenses like a magnifier provide multiple (up to 160%) magnification, which is impossible with ordinary glasses.

The device is not intended to be worn at all times. It should be used in situations where it is impossible to consider something without his help, or you need to do painstaking work. This can be reading indistinguishable text, some types of needlework (for example, embroidery with black beads on a dark background), minor watch repairs, jewelry work, fine engraving, manual assembly of electronic devices and microcircuits, and something else like that. For a person with excellent vision, this is an indispensable assistant, but they are also suitable for problematic visual acuity. Visually impaired people may wear the device over their glasses or contact lenses.

At the household level, magnifying glasses will allow an elderly person with low vision to easily thread a sewing needle, see a doctor's prescription, read the instructions for the medicine, replace the battery in the watch and even pull out an accidental splinter without calling anyone for help. Wherein The magnifying glasses hold firmly on the face and do not fall off when the head is tilted or when the head is turned to the sides, and the hands remain free to perform various operations.

Depending on the purpose, magnifying glasses are of two main types: ordinary and illuminated.

For home use, the usual version of the accessory is enough. Such magnifying glasses by design similar to corrective glasses. They have a comfortable frame, a silicone nose piece, and temples. But the optical part has a multiple magnifying effect. Distributed among pensioners, philatelists, numismatists, radio amateurs, needlewomen - in a word, among ordinary users.

These optical instruments are complex in design and are intended for professionals. These are binocular magnifying glasses with local illumination of the working area, with a set of interchangeable lenses. The backlight is powered by batteries. There are head-mounted and folding model options.

They are widespread in medicine (microsurgery, dentistry, vascular surgery), as well as among specialists in electronic equipment, radio technicians, watchmakers and jewelers. The cost of such devices is much higher than ordinary magnifying glasses.

The optical industry produces various types of magnifying glasses. When choosing, several distinctive factors are taken into account: functional purpose, design features, materials of manufacture, optical parameters. The performance properties of magnifying glasses are characterized by the values ​​on which the choice of accessory depends.

• Working distance. This is the size of the space between the object of interest and the lens. The size of the working distance must be selected based on the type of operations performed. If you plan to use tools, then for comfortable work you will need a product with a large working distance in order to freely perform additional manipulations. If you intend to thoroughly examine small objects with the help of magnifying glasses, then models with a small working distance will do.
• Line of sight. This is the area of ​​the object visible through the lens. The field of view decreases with increasing multiplicity of the device.
• Magnification factor... This indicator is different, and its choice directly depends on the planned use of the product. For daily work in jewelry or radio engineering workshops, the maximum magnification is required, and for domestic use, you can choose a model with a lower magnification.
• Focal length. This is the distance between the lens and the human eye that maintains full coverage of the field of view. The longer the focal length, the higher the comfort when using magnifying glasses, the more expensive the product is.
• Depth of field. This is the distance between the nearest and distant points of the object in question, where the focus is not lost. The depth of field decreases as the increasing power of the magnifying glasses increases.

These characteristics are interrelated, changing the values ​​of some directly affects the values ​​of other optical parameters. When choosing, the buyer decides for himself what is more important for him in accordance with the specific purpose of the device and his preferences. If you have made a firm decision to try magnifying glasses, then you definitely need to choose not the cheapest option so as not to buy a fake. It is naive to believe that a budget model of magnifying glasses will meet the expectations of good quality in use.

The final decision to purchase this new item also depends on the character of a particular person. There are people who are always ready to experiment and willingly test something new. They are optimists in life and will be able to appreciate the real benefits of magnifying glasses, and the design flaws noticed will not cause them serious grief. Such people can safely buy magnifying glasses, they will be satisfied. But there are many who are initially skeptical and focus on the shortcomings. They criticize everything in the device: design, price, materials (plastic lenses), lightness (it is unusual for them) and even versatility will be put at a disadvantage. Such people should not rush to buy.

In order for the choice of magnifying glasses to be successful, it is necessary to take into account not only the functionality of the device, but also the manufacturer. Let's talk about the most popular manufacturers of ophthalmic accessories available to customers.

• German company Veber with a worldwide reputation and a huge range of products, including optical products at affordable prices. Magnifying glasses from the Veber company are suitable for collectors, needlewomen, jewelers.

• Optical products from Leomax. Magnifying glasses of this company Big Vision have a maximum magnification (160%), do not strain your eyes, and allow you to work with both free hands. The high-quality design of the lenses does not give any distortion of visual perception, providing a wide view. The entire product is made of high-strength plastic.

• Zoom HD Magnifying Glasses Regular types have reliable construction, unique lenses with a reflective coating, versatile designs and sizes. The products are lightweight, durable, easy to use.

• The oldest German company Eschenbach... It began its activity back in 1914. On the market for over 100 years. Produces a variety of professional and household appliances. Magnifying glasses - one of the new positions in the company's assortment.

The popularity of magnifying glasses among buyers is steadily increasing, and more and more positive reviews about this unique ophthalmological device are published on the Web. Many buyers have noted a number of undeniable advantages.

• Absolute comfort in use due to the universal size, as most models have adjustable temples.
• Beneficial effect on vision when used correctly... There have been many cases of slowing down and even stopping the process of reducing visual acuity. Some nearsighted and farsighted buyers have reported, however slight, improvement in vision. Many ophthalmologists with many years of medical experience also speak about the positive effect of magnifying glasses on vision.
• Free hands greatly facilitate the performance of any work.
• Potential magnification rate (up to 160%) turned out to be quite sufficient to carry out work with the smallest elements.
• Models of the original one-piece shape provide maximum visibility without distortion.
• Do not require an obligatory visit to the doctor (sold over the counter) are suitable for both men and women.

In addition to positive aspects, buyers point out disadvantages in reviews.

• Magnifying glasses are hard to find in pharmacies or opticians... This disadvantage can be considered relative, since there are many sites on Internet sites where you can select and order the desired model. But with this method of purchase, it is really possible to inspect the device and try it on only after receiving it. And not all elderly people own a computer and easily navigate in the virtual space, and many do not have a computer at all.
• Paid delivery of such products to the regions of Russia on most resources.
• Insufficient strength of the temples for some models.

Despite the noted shortcomings, most buyers recommend this new product to everyone with vision problems, since the real benefits of using it significantly outweigh the negative aspects... It is necessary to use magnifying glasses strictly according to the recommendations of ophthalmologists, otherwise, instead of being useful, the device may harm. It must be remembered that when working with magnifying glasses, mandatory breaks are required in combination with simple gymnastics for the eyes so that the visual system periodically gets rest. If you use the accessory with reasonable care, exactly following the recommendations of experts, then there will be no problems.

In the next video you will find an unboxing and review of magnifying glasses from AliExpress.