If you put yourself in a position to dispense of one of the five human senses (hearing, sight, touch, taste, smell) which one is the sense you would never choose? Most people would answer that their sight is the most valuable asset they own, and they would prefer losing any other sense instead of this.
Stop for a moment from what you’re doing and imagine that of tomorrow you could never see everything that surrounds you, you can never see the face of the loved ones, you could never admire the greenery and spring flowers. Isn’t that thought frightens you?
So let’s find out some of the things you might have not known about your eyes:
- Everyone needs reading glasses as they age.
According to studies, over 99% of the population aged between 43 and 50 years old are wearing reading glasses. This thing is caused by the gradual loss of the eye lenses (cristallin) ability to focus with age.
- The eye lenses are faster than any professional photo objective.
The cristallin is the natural eye lens, whose function is to focus on the object you are looking at. In one single minute imagine on how many images are passing in front of your eyes and how fast the eyes manages to focus on objects situated at different depths and distances one by another. Each time you move your sight, the cristallin changes the focus so fast without you even notice. Compare that with an ordinary photo lens and you will realize the pure complexity of this mechanism developed entirely by nature.
- Eyes fully develops until age of 7.
The full development of the eyes takes place until the age of 7, that’s when it can be physically compared with adult eyes. This is also the reason why it is very important that the treatment of “lazy eye” syndrome (amblyopia) to be made as early as possible, because the chances of recovery from the treatment is higher as the syndrome is diagnosed earlier.
- Every day we blink about 15.000 times.
Blinking is an involuntary reflex act, but can also be made voluntary if we want to. Also the blinking is very important because it helps removing the microorganisms from the surface of the eye by forming a film of tears on this surface. These tears have antibacterial properties but also feeds the eye with oxygen.
- The cataract comes to all of us at old age.
People do not realize that this degenerative form of eye disorder is not necessarily a disease, but rather a natural consequence of aging.
We can resemble the cataract with white hair: they both come sooner or later. Usually, the cataract install around the age of 70 years and the interventions for correcting the cristallin have the highest success rate if done in the first 10 years after diagnosis.
- The diabetes can be detected by a simple eye control.
The people who are suffering from type 2 diabetes do not often presents symptoms that would give away the disease.
That is why most of us do not even know we suffer from this disease until a routine ophthalmologic examination which can detect those little broken blood vessels behind the eye, often a sign of diabetes installation.
- In fact, you see with the brain, not the eyes.
The visual function is extremely important because it gathers informations about objects and images you see, and sends them further through optic nerve to the brain, more specific in the visual cortex. There, all of this informations are analyzed and returned back to the eyes, so that visual process can take place. And all of this in a time almost impossible to imagine…
- The eyes weeps when they get dry.
It seems to be a logical contradiction, isn’t it? Although it sounds quite strange, this mechanism can still be explained.
The tears are formed by 3 components: water, mucus and fat. When an imbalance occurs on this three components, the eyes dries and the brain responds to this dryness accordingly, therefore it will take control and will produce additional water, which will lead to the formation of tears to solve the problem.
- The brain has the control over blind spots.
Some eye disorders, such as glaucoma and other health problems such as strokes, can lead to the development of blind spots, which appears in the visual sight.
Therefore, the patients may experience white or black spots, so called dead angles. In such situations, the brain receives warning signals and commands the unaffected eye that it must take over the functions of the affected eye.