Color of eyes – amount of melanin in a raduzhka which defines what eyes can be. The most popular colors of eyes is brown, its shades and blue. And here green eyes – rare color, however, at residents of Turkey it is dominating.
Throughout life color of eyes changes, and it is normal. At children and adults it changes for various reasons. At kids, this process is caused genetically and is part of development of the kid. And here at adult population, color of eyes can change as a result of strong experiences.
Color of eyes at newborns: on what color of eyes that is normal and that isn't present depends
Color of eyes at newborns – can be a miscellaneous. As a rule, it has uncertain color of blue or gray shades. This results from the fact that the cages developing melanin aren't rather developed to produce the necessary quantity of a pigment.
With a tide of life of the kid, melanin gradually collects, reaching the necessary level. Than more melanin is produced and collects – especially dark are eyes. Eyes at the child will become how dark, from initial color – not simply to predict, especially if at parents of an eye differ on color.
Color of eyes is established some years. At some children color of eyes is established already in half a year, and at some – about three years. Therefore, change of color of eyes throughout this period it is normal and shouldn't disturb.
Color of eyes of the kid depends on amount of the melanin developed by melanotsita and accumulated in an organism. Also, color of eyes depends on that, how correctly there is a process of production of melanin.
If process of production of melanin is broken – eyes at the child have color of different intensity – one eye of brighter color, and the second less bright color. This phenomenon is called as a full geterekhromiya – surplus or a lack of a pigment.
Besides, happens that the raduzhka of eyes has not a uniform color. It can have segments of other color is a sector geterokhromiya. The phenomenon it meets much less than a full geterokhromiya.
The reasons inducing a geterekhromiya – a set, as possible outcome. In one cases, the phenomenon doesn't cause problems and doesn't affect on health. And there are cases when the geterokhromiya gradually becomes complicated and provokes a cataract.
Therefore if you note manifestation of a geterokhromiya at the child – it is necessary to address to the ophthalmologist and to make tests.
Thus, it is considered normal:
- Gray-blue color of eyes at the child at the birth and until an ustanavlivaniye of color of eyes, irrespective of, whom color of an eye at parents of the kid.
- Change of color of eyes from light to dark, till three years. This process on terms the absolutely individual.
It is necessary to pay attention, if:
- The full or partial geterokhromiya takes place.
- If one eye of one color, and other color and it is brightly expressed to the second.