Brown, blue, green, gray, colored or nutty. There are many shades eyes and every color on a given person will stand out differently. Still, the gaze of one is exciting, the other fearless, but it can also be full of fear or love. After all, the eyes are a mirror of the soul and their color only stimulates it.
Various comparisons are also associated with eye color. Green eyes are said to reveal falsehood, blue tenderness and brown sincerity. However, this is a very general description, which approaches the reality only briefly. The color of the eyes is influenced by genetics and determined by the iris. It is the amount of pigment in the iris that affects the color, dark eyes have more pigment and, conversely, blue and green eyes less.
“15 genes are involved in the color of the eye. The color of a child’s eyes is influenced not only by the color of his father’s and mother’s eyes, but also by the genetic information of more distant ancestors. That is why the child of blue-eyed parents does not have to have blue eyes, “explained ophthalmologist Pavel Stodůlka.
Color The iris can change with age. The fastest changes in eye color occur in babies. Few will keep the original one. “The color of the eyes in newborns is determined by the amount of pigment, ie melanin, which begins to form only after the birth of a baby,” she told the portal. mojezdravi.cz ophthalmologist Darina Bujalková.
However, the change can also occur in old age. “In some cases, the color of the eyes changes until the age of ten, occasionally until adulthood. This can also be influenced by hormonal changes or incorrect pigment development of the iris, “she added. Most often people have dark eyes. This is followed by blue-eyed and green-eyed individuals, and finally by a person with gray eyes. “They are the rarest. Only one percent of the population has gray eyes, “says the head.
What eye color reveals about us
However, eye color does not only have an aesthetic function. There are many studies that have found a link between eye color and the incidence of disease. “One study found that light-eyed people are more at risk than brown-eyed people. The dark pigmentation of the iris absorbs more UV radiation, thus protecting against the development of melanoma, but on the other hand it increases the temperature of the lens, which can lead to the formation of cataracts. They also found that the amount of melanin is related to the speed of nerve signal transmission and thus to the faster reactions of brown-eyed people, “said Stodůlka.
A marked change in color can signal a number of serious diseases that may not be related to the eye at all. It can also detect diseases of the body and the eye, such as inflammation, tumor, glaucoma, bleeding into the eye or a foreign body in the eye. That’s why you should see a specialist if you change your eye color.
But don’t be afraid of subtle changes. “The size of the pupil and the color of the iris may change slightly in certain situations or emotions, such as anger or fear. The pigments in the iris are either compressed or stretched, which slightly changes the color of the eyes, “Bujalková explained.