Little known things about the

The eyes, or "the window of the soul", are the means to help you observe and judge the world around you. Thanks to the eyes that our lives are colorful. However, according to the Health magazine, the eyes also contain interesting things that you have not had the opportunity to explore.

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1. Everyone needs reading glasses as they age

Assume that you have perfect eyesight. If you are reading this article and under 40 years old with great foresight, I can say for sure that you will need reading glasses at some time in the future. For more than 90% of the world population, the age at which you first need reading glasses is between 43 and 50 years old. This is because the lens in your eye gradually loses focus due to age. To adjust the focus of objects close to you, the lens in the eye has changed from flat to more globular and loses this ability as you get older. The moment you enter about 45 years old, you will start to keep things farther away so you can focus on them.

2. The lens of the eye is faster than any camera lens

Right after the pupil is the natural lens of the human eye - the function that focuses on the object you are observing. It only takes a minute to glance around the room and think about the different distances you're looking at. Every time you do this, the lenses of your eyes immediately change focus while you are not even aware of it! Compare it to a camera lens that takes a few seconds to focus from one distance to another, you will feel lucky because of the transcendent agility of the lens in the eye. . Without this agility of the lens, everything will constantly come in - out of your sight.

3. Eyes change in size according to age

The truth is that there is a small change in the size of the eyes since you were born until you left your life. When born, the eye has a diameter of about 18 mm. Within a year later, this size increased to 19.5 mm. An adult has an eye diameter of about 24-25 mm and an eyeball equal to 2/3 of the size of a ping pong ball. Thus, throughout our lives, the eyes are only about 28% larger than the original size.

4. The eyes develop completely when we are 7 years old

By the age of 7, our eyes reached complete development. And physiologically, the eyes of a normal 7-year-old are like the eyes of an adult. This finding by researchers is extremely important, because it helps us determine whether to improve a "lethargic" eye before age 7. The more ill the eye is diagnosed early, the higher the ability to recover after treatment because the eyes are still developing and able to improve vision. In addition to 7 years of age, no treatment can improve vision.

5. You blink about 15,000 times every day

Blinking is a semi-automatic function. That means, we just unintentionally blinked, deliberately did it when necessary. This is considered a very important function of the eyes because it eliminates all dust on the surface of your eye by spreading tears onto them. These tears provide oxygen to nourish the eyes as well as have important antibacterial properties. The function of blinking the eyes is simulated as the function of the car windshield wiper, which helps clean and remove all obstacles to keep you clear.

6. People get cataracts when they get older

Few people know that cataract is just a normal consequence of aging and everyone suffers from it at any point in their life. This is a phenomenon of cataract blurring, preventing light rays from passing through, resulting in retinal loss of vision and diminishing visual acuity leading to blindness. You may think of eye cataracts similar to having salt and pepper, a normal, natural change with age. On average, people who have cataracts for the first time are about 70 years old and by the age of 80, you will definitely get cataracts. Usually, about 10 years after the onset of cataract, the new patient needs treatment.

7. Diabetes is often first detected through eye examination

People with type 2 diabetes often have no symptoms, which means they don't even know they are sick. This type of diabetes is often found in an eye exam because the patient exhibits small bleeding from leaky blood vessels behind the eye. This is definitely a good reason for you to regularly check your eyes.

8. People look at the brain, not with their eyes

The function of the eyes is to collect all the necessary information about the object you are looking at. This information is then transmitted from the eye to the brain through the optic nerve. The brain itself (rather, the cortex in the visual organ) is where all this information is analyzed to help you "see" the object in its complete form. Of course, we cannot deny the "focal point" of our eyes.

9. The eyes can adapt to blind spots in sight

Certain eye conditions such as glaucoma and general health conditions such as stroke can lead to the development of blind spots in your vision. This can be a serious breakdown if not thanks to the ability of your brain and eyes to adjust to make blind spots disappear. This process takes place by eliminating blind spots in the affected eye and leaving good eyes "filling in the gaps". Such adjustments make your eyes recover quickly.

10. Eyes watery when dry

It may sound strange, but this is one of the few truths about your "soul window." Human tears consist of 3 different components: water, mucus and fat. If these 3 components no longer exist in their correct dosage, your eyes will dry out. Your brain copes with this dry eye by secreting more water and therefore your eyes are blurred.