The biological basis is the eye in youth, has increased too long because of its own optical strength. The focal plane for the image of a remote object ends at the front of the retina, producing an unfocused perception.
But prevention is far better than adjusting optical blurring. Fortunately, spending extra time outside can reduce the chance of children affected by myopia.
Find The Cause
Myopia is considered almost completely clinically confirmed. However, the incidence has increased markedly in metropolitan southern China, Hong Kong, Taiwan, Singapore, Japan and South Korea, where 80-90 percent of those who finish high school are currently short-sighted.
That’s up from 20-30 percent just two centuries ago. kartulincah.com
Because the collection of genes doesn’t change that fast, this big change must be due to environmental changes.
In 2005 we reviewed studies on myopia and found correlations with schools. We found locations that use a high incidence of myopia are the main actors in a poll on global education outcomes.
Fortunately, not all places are high-performing, one of them Australia, reveals a high incidence of myopia. This shows that higher educational outcomes do not automatically cause myopia.
We also hypothesize that all human groups have a tendency to emerge with myopia under certain environmental problems.
This implies that blurred vision exceeds 20 cm in the eye. Such intense or higher myopia increases with age and can cause irreversible vision problems.
So avoiding nearsightedness is now important, especially for East and Southeast Asia.
Prevention Is The Key
Three clinical trials in East Asia have shown that increasing the amount of time children spend off campus reduces the likelihood of myopia.
Australia clearly has a lower level of myopia using a lifestyle that emphasizes outside activities.
Young people report spending only two to three hours every day, not including time outside of college.
However, there are strong obstacles to achieving these benchmarks in places where spending time outside is considered a diversion from research.
Therefore policy responses must also plan to inhibit the development of myopia, events where moderate to moderate myopia is increasingly intense during youth.
At present there is controversy over whether time outside slows down development, but a strong seasonal effect on development suggests it is possible.
School regimes that provide a suitable place for time outside can reduce the start and development of myopia.
These school based interventions need to be supplemented with clinical interventions, such as the use of atropine eye drops.
Currently, the Brien Holden Vision Institute publishes forecasts about the incidence of future myopia and higher myopia, depending on well-documented trends.
While projections must be based on uncertain places, they emphasize that an important situation can emerge in the coming decades only in East and Southeast Asia, if preventive measures are not taken.
Recent commentators have emphasized the use of electronics, and especially tablets, in the development of the myopia epidemic.
Back in Taiwan, this has pushed restrictions on the use of this equipment by young children.
But a direct historical perspective shows that its function is small. The net wasn’t formed until 1993, and smart phones and tablets didn’t develop until a few decades ago.
This device cannot be cause and effect. There is also, in reality, no evidence that electronic devices are dangerous to themselves.
They can add to the close workload, or contribute to children who spend less time outside, which can exacerbate current problems.
However, the root cause of the myopia epidemic lies in the imbalance between teaching pressure and the total time children spend outside in bright lighting.
Outbreaks must be addressed at this level, through school based prevention interventions, along with more viable prevention strategies in clinical care.