You may lose your sight due to looking at your smartphone too much …

The mechanism of seeing things with the eyes is roughly the same as that of a camera.
The cornea (filter) and lens (lens) regulate the light captured in the eye, focus and retina
Tie the statue on top (film).
When looking at distant objects, the lens becomes thinner, and when looking closer, it becomes thicker.
In other words, the refractive index is changed by the thickness of the lens, and the focus is properly placed on the retina.
That’s why.
However, the refraction may be too strong and focus in front of the retina.
This is called myopia, or more precisely, “refractive myopia”. Conversely, it focuses deeper than the retina.
This is farsightedness (farsightedness is never good vision).
As the lens becomes harder with age, it becomes difficult to thicken it and it becomes difficult to see the hand.
It is “presbyopia”.
Thickening the lens and focusing on nearby objects is actually a very forceful task.
That’s why sometimes you have to consciously look into the distance or close your eyes to rest your eyes.
By the way, it is said that the eyes of newborn babies are usually all farsighted.
In the baby’s eye, the distance from the cornea to the retina = “axial length” is too short, and the focus goes behind the retina
So, as the eyes grow larger as they grow, the axis of the eye gradually stretches, and they become “moderately” myopia.
It seems that it is going.

Now, regarding the axial length of the eye, there is another type of myopia called “axial myopia”.
Like that.
A condition in which the “axis of the eye” is too long, that is, the distance from the cornea to the retina is too far and the focus does not reach the retina
Are.
This is often the case of hereditary or congenital, but it is usually spherical like a ping-pong ball.
It occurs when the eyeball, which should have been, is transformed into a shape like a rugby ball.
I heard that this is very dangerous.
The deformation of the eyeball into an oval shape means that the retina is stretched and thinned, causing retinal detachment
This is because it is easier to wake up, the optic nerve is damaged, and in the worst case, blindness occurs.
Moreover, it is scary because once the eye shaft has been stretched out, it can never be restored.
As mentioned earlier, the eyeball, which was a round ping-pong ball when it was born, gradually changes its axis as it grows.
It is normal for myopia to grow and progress, but it is difficult with rugby ball from the beginning.
During the growth process, they fall into severe myopia and are exposed to the risk of blindness.

By the way, it seems that this elongation of the eye shaft usually stops when you become an adult, but recently it has become a good age.
When the number of cases of “rugby ballization” of the eyeball is rapidly increasing as it begins to stretch again, an ophthalmologist said,
We are sounding the alarm.
The cause, of course, is the spread of personal computers and mobile terminals such as smartphones, which have become indispensable in the business scene.
If you are glued to your computer or smartphone for a long time and only look at your hand, the next time you move your eyes to the distance,
It quickly loses focus.
If it is mild, it will return to normal after a while, but if this continues, the lens will get tired.
It becomes impossible to change the thickness and focus on the retina.
Focusing to see up close is a burden on the eyes.
Still, if you only look closer, you will run out of strength and your focus will drop behind your retina.
Our eyes still try to pull our focus back to where it should be, but as a result,
Contrary to the case where the previous focus does not reach the retina, the retina follows and extends to the back where the focus is lowered,
The eyeball is deformed, isn’t it?
Recently, smartphone addiction has become a problem even in elementary and junior high school students, and children who should still be close to spherical
It seems that something unusual is starting to happen too soon.
It is said that many people can’t let go of their smartphones for hours a day, even at mealtime or even after bedtime.
I often hear this, but when I hear this story, I think about it for a moment and make time to put down my smartphone.
Is it?


By Admin|2023-02-10|2023,News Release|


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