Eyes – Mirror of Soul
We use our eyes to see. When we see an object, we actually see light reflecting off that object. This light enters the eye, which changes the light into electrical signals, that travel through the optic nerve to the brain. The brain interprets signals as an image, or picture, of the object. The eyelid protects the eye. By blinking, eyelids move tears across the eye to keep them moist. Eyelashes also protect the eyes from dust and other particles.
The light rays enter the curved front of the eye called the cornea, where they are partly focused. They pass through the pupil, which enlarges in dim conditions to let in more light and shrinks in bright conditions to protect the inside of the eye from too much light.
The rays are then focused on to the retina by the lens. Inside the eye is the retina, which contains about 120 million rod cells and seven million cone cells. The image on the retina is upside down, but the brain turns it the right way up.
Vertebrates each have two eyes similar to human eyes. But there are differences, which depend on the animal’s habitat and behavior. Many animals have two eyes that look in different directions. This makes it harder for enemies to catch them.
Invertebrates have various other kinds of eyes. Some mollusks and spiders have simple eyes called ocelli. Insects have compound eyes, which are made up of many lenslike parts.
A golden eagle has extremely powerful eyesight. It can see rabbits and other prey from a distance of more than 1 km.
The color of the eyes reflects your personality and can tell a lot about the temper and internal energy.
In symbolism, the eye is always associated with light and the “spiritual ability to contemplate”. In many cultures, the Sun is considered an all-seeing eye, or it is personified in the form of an eye, as, for example, the young god of the Sun of Egypt Horus. A stylized image of his eye served as an amulet of great power.
In Christian iconography, the eye, surrounded by the rays of the Sun or located in a triangle with a vertex directed upwards, is a well-known symbol of the divine omnipresence or trinity.
♦ Brown eyes are actually blue under the brown pigment. There is even a laser procedure that allows you to turn brown eyes into blue forever.
♦ The pupils of the eyes expand by 45% when we look at the one we love.
♦ The cornea of the eye is the only part of the human body that is not supplied with oxygen through the circulatory system. The corneal cells receive oxygen dissolved in tears directly from the air.
♦ The corneas of human and shark are similar in structure. Surgeons use the cornea of the shark in operations as a substitute.
♦ You cannot sneeze with your eyes open. During sneezing, we close them reflexively.
♦ Our eyes can discern about 500 shades of gray.
♦ There are people whose eye color is different. This phenomenon is called heterochromia. There are very few such unique people – only 1% of the population are registered. A similar phenomenon occurs due to mutations at the gene level (lack of a color pigment – melanin).
♦ In Ancient Egypt, both women and men used make-up. Eye paint was made from copper (green paint) and lead (black paint). The ancient Egyptians believed that the makeup had medicinal properties. Makeup was used, first of all, for protection from sun rays.
♦ Bee eyes have hairs. They help determine the direction of the wind and the speed of flight.
♦ About 65-85% of white cats with blue eyes are deaf.