How to choose sunglasses
Material shall be a primary criterion in choosing sunglasses, because health is more important to the style or image. Glasses not only help protect your eyes from bright sunlight, but also do not allow UV light (only glasses with glass lenses). Just wanted to say that too small glasses (whether glass or plastic) though will look stylish, but will be a poor tool in sun protection.

Sport, recreation and sunglasses
For sports sunglasses special requirements. They not only must reliably protect your eyes from the sun, but have increased strength, to be made of special plastic, not glass, because glass increases the risk of eye injuries. According to statistics, 90% of eye injuries could be prevented if protective eyewear, with nearly half of all injuries occurring in children under 14 years.

How to choose glasses for a child?
In the first year of life, the main indications for correction are aphakia and high myopia. In children under the age of three leading indications for correction of hyperopia is for esotropia. Preschool children (3-7 years) to correct aphakia, congenital myopia and hyperopia are added early acquired myopia and astigmatism. At school age, the leading indication for the correction of myopia is acquired.

How to pick the right rims of the glasses?
New Year - the right moment to change the old, familiar, or start something new. For example, you can radically revise its image, or even just thinking about it. Think we'll start with the principal, and most importantly to us, loved ones, of course, the eyes, and everything associated with them.

What you need to remember when choosing a frame for glasses?
Participation points is a fairly serious procedure. Many people, especially women, are choosing to purchase the frames as a costume or decorations. The frame should be modern, "trendy" and yet have to face, color and styling your hair, and jewelry.

Improving appearance points lenses
Vysokoprelomlyayuschie lenses made of organic materials can significantly improve the appearance of spectacles. Using the lenses of materials with refractive indices from 1.60 to 1.74 can substantially reduce the thickness and weight of lenses and glasses to make a superficially more attractive, even at high degrees of ametropia. Variety vysokoprelomlyayuschih range of lenses in combination with optical coatings, which offer today, many manufacturers, often puts consumers in a quandary: what lens to choose? To make the right decision, we must understand the basic characteristics and features of the lens material with high and superhigh refractive index.

Contact lenses
It is believed that the eyes of the lens blush, "dried" lacrimal gland, eyes acquire a specific shine (not the greedy, not that ravenous), triggered by a myriad of diseases and so on. I wear lenses for more than 4 years. With regard to shine in the eyes and other cosmetic effects of the MCL, then I am with my close friends spent the experiment: one in the eye lens, the other without.

Spectral points or more on computer vision syndrome
American Association of optometric studies published data on the new occupational disease "Computer vision syndrome" - (KSZ). Computer vision syndrome in one form or another is observed in 100% of computer users. His symptoms are familiar to almost everyone who holds the monitor more than 4-5 hours a day. Ophthalmologists note the rapid growth of cases of SGC. For example, in North America with typical complaints of the SGC to the doctors turned to 1992, 10 million people. In 1996 - 15 million people., And in 1998 for 22 million people.

Polarizing eyeglasses. What do they differ from ordinary sunglasses?
Although the cost of those and other quite comparable, but the fishing is desirable polarized glasses. How to check whether the data points polarizing? Very simple. Take two pair, and lean their glasses to each other. You will be able to see through them. I now turn to some points by 90 degrees. If you continue to see through the glass, then the conventional glasses, but if you do not see - that's all right - you are in the hands of polarized eyeglasses. What it does affect fishing?

Sunglasses - Accessory enigma
The bright sun is often the cause of the appearance of wrinkles. On clear summer days, it is impossible to watch without squinting his eyes, especially if it is near sea. Sunlight reflected by water, shine in mercy. The only salvation in the hot, cloudless days are the sunglasses.

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Selection of glass lenses

Many people, buying eyeglasses, more attention to the choice of frame, assuming that it is the most important part. Not say that they are wrong, because the frame is really crucial, but only in terms of aesthetics. 

It is important to remember that the glasses - first optical device designed for vision correction, and then a means for expression or detail image. And once the optical properties of glasses depend solely on the quality of lenses, then they should choose thoroughly and competently. In the end, the quality of the lens depends on acuity and eye health. 

In order to choose the right glass lenses, you need to know the most important of their parameters: optical performance, the coefficient index, material properties of the coating. The main optical parameters include the distance between the pupils of his eyes and diopters. These characteristics are defined in time ophthalmologic examination. When choosing lenses they should comply, because otherwise you can aggravate the already impairment. To be sure that the selected lenses will accurately respond to these indicators, to acquire a better 

Specialized Salon of optics.

Refractive index is called the index of the lens. On it depends the thickness of the lens - the higher the index, the less will be its thickness and curvature. For lenses with a few diopters, this index is not as important as for the stronger, because more diopters, the thicker will be the lens, and this makes it too prominent in the frame. Due to the high refractive index lens become thinner, making them lighter. In addition, they will be less distorted eyes - many, perhaps, pay attention, that in the thick lenses of human eyes seem unnaturally small. Depending on the material from which lenses are made, index can vary from 1,5 to 1,9, and the coefficient of 1,5-1,6 is considered low, while above 1.6 - high. 

Material glass lenses also largely determine their quality. Today there is a choice between glass and plastic. Each material has its advantages and disadvantages, so the choice comes down to individual preference. 

Glass lenses are more resistant to scratching and have a greater refractive index than the plastic, but plastic over lightweight and easy handling. Modern methods of production of glass lenses glasses give another important advantage - the anti-reflective coating. It special technology to improve the optical properties of the lens by increasing its transparency by 8-10%. This lens more 
convenient for the eyes, not so much weight as the optic nerves, improves vision in the dark.