It is very important especially during the summer to think about how to protect your eyes from ultraviolet rays. Goggles are the best way to protect your vision from sunlight. Depending on the wavelength are three types of rays: UV-A, UV-C, UV-C. The UV-A rays have the greatest wavelength. They contribute to the occurrence of sunburn and cause premature skin aging. The UV-C rays cause sunburn and are frequently identified as cause of skin cancer and eye diseases (eg cataract), but also worsen the course of some diseases such as maculo-distrophy, diabetic and retinopathy. The UV-C rays are the shortest wave and are most dangerous. Fortunately, they are absorbed by Earth’s atmosphere before reaching the surface. The best way to protect your eyes from ultraviolet radiation is right and to choose the appropriate time for us glasses

The ingestion of large amounts of omega-3 fatty acids reduces the risk for women in the development of age-related macular degeneration – the leading cause of vision loss among older people, Reuters reported, citing the results of U.S. research. The conclusion of the specialists from the hospital Brigham and Women’s Hospital in Boston supports previous research that the consumption of fish slows the eye disease. The study has included over 38,000 participants aged over 45 years.
The fish is rich in omega-3 fatty acids, including docosahexaenoic acid (DHA) and EPA, are salmon, herring, trout and tone. The authors of this study found that high intake of DHA reduces the risk of macular degeneration by 38 percent and EPA – by 34 percent.
When vision is seriously impaired as a result of age-related macular degeneration, doctors can only slow the disease but not to repair damage to the retina. Therefore, they seek ways to protect against macular degeneration.
“There is no other known ways, but to stop smoking or never smoked,” explained the study’s authors.

The human eye distinguishes color and a huge amount of nuances, thanks to special receptors that are about seven million. It is curious that the perception of eye device contains only three types of pigments sensitive to three colors – red, green and blue. What we see is a result of their incorporation. However, there are people, where some of the pigments is absent or in insufficient quantities. From birth, they see the world around her in the other colors. These are color-blind. People with impaired color vision deficiency is often not noticed, because we are used to designate the colors of objects using conventional adjectives. The grass is green, sky – blue, blood-red. But these adjectives adopt color-blind in its own way. English scientist John Dalton, who first described the color blindness does not differ red color. He found out about his shortcomings only when he was 26 years. The Color-blindness is a hereditary defect of visual transmission which is connected with the X-chromosomes. So the mothers are often caused a victim – his sons. Suffer from this pathology, about 8% of men and 0,5 per cent of women. Many people think that color-blind do not see colors. In fact, only 0.1% of them see the world as black and white film. In most cases there is reduced color vision: PROTANOMALIYA (reduced perception of red color) or DEYTERANOMALIYA (low uptake of green). Full color blindness, one of two colors occurs very rarely. In such cases, the first mistake the color red with black, dark gray, brown, sometimes with green. In the second, the green color is mixed with light-pattern, pale red.

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