With the advent of the summer season, when solar activity reaches its maximum output of heat and light energy, ophthalmologists often have to remind their patients that they can not only protect their eyes from light, but also maintain good visibility, which can be corrected in the usual way - using diopters.
Unprotected from direct sunlight with high activity of light energy, the eyes are exposed to almost the same light burns as the skin. Sunglasses, significantly weakening the luminous flux, protect the optic nerve, mucous membrane and blood vessels, which are practically defenseless in bright sunlight. People who had problems with visual acuity were faced with a choice: protect and protect their eyes, or endanger them and use ordinary prescription glasses.
Diopter Sunglasses
Thanks to the latest technical capabilities, the problem of combining conventional sunglasses with the possibility of vision correction has been completely solved. In almost every clinic or he alth center where optics is on sale, you can buy sunscreen.glasses with diopters. They will allow you to protect yourself from the harmful rays of the sun, while visual acuity will remain at the proper level. It is best to purchase such a product at specialized points of sale. Buying in the market does not guarantee the quality of the goods, and this is dangerous for eye he alth.
Diopter sunglasses prices may vary. It all depends on the quality of the product, the manufacturer (known or unknown brand) and other features. The cost of the most budget models on average ranges from 600 to 1500 rubles. But before purchasing a product, you must first be examined by a specialist.
Benefits of sun protection optics with diopters
As time has shown, many patients who use prescription sunglasses are very satisfied with the purchase. The ability to clearly see objects and at the same time fully protect your eyes from direct sunlight solves the problem of proper rest and work in open spaces. Manufacturers have been able to diversify products in this category, and today the following options for vision-corrected sunglasses are available:
- Diopter sunglasses for drivers.
- Swimwear.
- Sports models.
- Glasses for children.
- Diopter sunglasses for leisure and work.
It is very important that some of the models not only fulfill theirdirect protective function, but at the same time maintain the desired visual acuity.
Features of choice
Diagnosis in special institutions will help determine the choice of the desired model. It must be remembered that sunglasses with diopters may differ in some functional features. For example, chameleon glasses in brighter light change the color of the glasses, thickening the tint, thereby automatically adjusting the level of protection of the eyeball. In low light, the optics become transparent again, thereby allowing more light to reach the iris, which prevents ocular nerve strain.
The most basic criterion in the diagnosis of vision is the determination of visual acuity. Based on the results obtained, the desired optics are selected. What is very important: the vision of the left and right eyes may have different indicators, in this case lenses with the necessary diopters should be ordered individually.
Optical parameters to consider
In any case, before buying sunglasses with diopters, you should definitely pay attention to the following points:
- Manufacturer. The more famous the manufacturer, the better the quality of the lenses and frames.
- It is imperative to try on and test the proposed model.
- Anti-reflective coating on lenses, which is the main protection against the invasion of ultraviolet rays on the retina, is a prerequisite for suchmodels.
Bad or non-existent coating, a blurry fuzzy picture with loss of color shades indicates poor product quality.
Glass or plastic
The fact that plastic lenses have long rivaled glass in quality is well known. The undoubted advantage of transparent plastic is the ability to withstand mechanical shocks during operation - they are difficult to break. But there are also disadvantages that the manufacturer of this particular type of optics does not advertise.
- During operation, the plastic is covered with small cracks, scratches.
- Over time, the surface of the material deforms and becomes cloudy.
- Despite the relative cheapness, plastic is short-lived for high-quality operation.
There are also good quality optics made of plastic, which do not deteriorate for a long time and do not distort images, but, as a rule, these products are made only by a well-known manufacturer and cost a lot of money.
Glass lenses are an order of magnitude higher than plastic models in terms of workmanship. Well-focused glass transmits the image to the retina 1:1, this is the main superiority of the material.
Only two points can be attributed to the disadvantages of glass lenses:
- Damage caused by mechanical shock.
- High percentage of fogging after a sudden change from cold to warm environment.
Ophthalmologists, when consulting their patients, give preference toglass lenses as they are of higher quality.
Frames
When choosing frames, many people first of all pay attention to design and style. In addition, when choosing a frame, you need to carefully examine the material from which it is made. The frame should not rub and press, irritate areas of the skin where there is constant contact. Models with rubberized temples and silicone baffles sit comfortably and firmly on the bridge of the nose, without causing irritation and damage to the skin.
Men's prescription sunglasses
According to the design of frames, optics are divided into three types. Therefore, one of the most popular topics from manufacturers are men's sunglasses with diopters, which are a faithful assistant not only at home, but also at work. A number of male occupations involve working outdoors under the sun, including construction workers, road pavers, drivers, farmers, and others. Many of them have vision problems, so their eyes need special protection. Thanks to the latest technology, it has become possible to use sunglasses with diopter lenses when driving, during leisure and when playing sports.
When spraying lenses, different levels of tinting are used, with different densities and the ability to transmit sunlight to the retina. There are 4 levels of coverage:
- "0" - 20% level of sun protection. Scope of application - office rooms and places with little or intermittent exposure to sunlight.
- "1" and "2" - the best option for use in everyday life. Protection of the eyes from exposure to sunlight from 20 to 80%.
- "3" - at least 90% of eye protection from sunlight. The best option for relaxing on the beach.
- "4" is the strongest level of protection, used by professional climbers and travelers in countries with high solar activity.
Photochromic elements, which are used to cover lenses, is one of the latest discoveries in the scientific world, solving the problem of protecting the eyes from bright light and sunlight with additional correction of vision and bringing it back to normal for people suffering from visual impairment.
