Many mums are doubtless: if in primary school their son has to wear glasses the fault is due to tablets and videogames . Some of them think that this is due to adversity of children in eating fruit and vegetables: less vitamins make it impossible to focus.
But.. what truly causes short-sighting? The “accused” have changed throughout the years. One hundred years ago , refers a recent study on scientific magazine Perspective in Public Health , the most believed theory was that of light shortage in schools, the, in Sixties there was the hypotesis of decisive power of genetics, so, it was not possible to proceed in any way to solve the defect. Nowadays, again we gave importance to environment, not under-evaluating how much familiarity matters.
Genes create the prerequisite to cause the defect: if mom or dad don’t see well from long distance , probably their son also will have to wear glasses. Said this, the involvement of some environmental factors seems certain : the closely work, for example, makes the eye shortsighted.
To keep books and exercise books so close to the nose, as often children and kids make when they study, facilitate the appearance of defect: in fact, many Asian populations, generally predisposed to short-sighting, the defect is closely linked to scholarship grade.
Are Tablet and computer really a menace to sight? Not more than books, but in front of a videogame time flies, and we spend hours, not minutes, with eyes focused on a point which is too close. This is what makes short- sighted , so, the only possible prevention , considered that to study is a duty and to avoid the use of computer is utopia, is to make children keep their eyes at least at 30 centimeters far from the sheet or the screen, inviting them to stay more at open air, considered that limited horizons of closed spaces don’t allow sight to be exercised to focus from far distances.
Are the vitamin supplements necessary? A various and equilibrate nutrition is more than sufficient to give to children what is needed and necessary for eyes health : it is enough to eat a bit of green leaves vegetables to have lutein , whilist fruit with blue peel as blueberry give the necessary anthocyanins and with a bit of almonds and walnuts give a good dose of fat acids omega 3.
Read also:
- Shortsigthening:let's spend 3 hours in open air
- Help children to wear glasses
- China: 90% of population is short sighted
- Are you sure you have the right correction? sight is a serious matter
