20 20 Rule to Slow Down the Progression of Nearsightedness and Astigmatism
If you are bothered by nearsightedness or astigmatism, or need to work before computers or do some other near activities for long time, 20 20 rule will help you to slow down the progression or avoid getting nearsightedness and astigmatism.
The following will give some introduction on 20 20 rule in order to lead more people to benefit from this rule.
Nowadays, a lot of people need to work before computers everyday with eyes staring at the computer screen all day long.
There is some important points most people always neglect, one is the distance between screen and eyes, the other is no rest while staring at screen nearly a whole day.
This is also the same case for people doing some other near activities, for example, reading or doing some paper work.
After a certain time of working like this, people are opting for nearsightedness or astigmatism, or their nearsightedness or astigmatism is deteriorating.
20 20 rule is also known as Harmon's Rule, which uses simple steps to slow down the progression of nearsightedness and astigmatism.
Following this rule, people are required to place their computer screen at the distance of 20-26 inches from the eyes.
And for other near activities, the proper distance is 14-20 inches.
In order to measure the distance easily, you can use the distance between the elbow and wrist to compare if the distance is OK or not.
In addition, it is required for people who are doing near activities to stare at objects at the distance of 20 feet for every 20-minute work and keep staring for 20 seconds.
So it is also called 20-20-20 Rule.
Though 20 20 rule is very easy, it is often the case that people are easy to forget the time especially when they are busy at working.
So it is advised to have an online 20 20 rule timer.
The timer can counts down from 20 minutes, and when it gets to 0, there will be a window coming out to indicate you to stare at objects at 20 feet for 20 seconds.
With the help of the timer, it will be no difficulty to practice 20 20 rule.
From the above introduction, we can see 20 20 rule is a very easy but effective method to slow down nearsightedness and astigmatism.
But there is a point we should keep in mind that 20 20 rule can slow down the progression of nearsightedness and astigmatism, but can not treat nearsightedness and astigmatism.
The following will give some introduction on 20 20 rule in order to lead more people to benefit from this rule.
Nowadays, a lot of people need to work before computers everyday with eyes staring at the computer screen all day long.
There is some important points most people always neglect, one is the distance between screen and eyes, the other is no rest while staring at screen nearly a whole day.
This is also the same case for people doing some other near activities, for example, reading or doing some paper work.
After a certain time of working like this, people are opting for nearsightedness or astigmatism, or their nearsightedness or astigmatism is deteriorating.
20 20 rule is also known as Harmon's Rule, which uses simple steps to slow down the progression of nearsightedness and astigmatism.
Following this rule, people are required to place their computer screen at the distance of 20-26 inches from the eyes.
And for other near activities, the proper distance is 14-20 inches.
In order to measure the distance easily, you can use the distance between the elbow and wrist to compare if the distance is OK or not.
In addition, it is required for people who are doing near activities to stare at objects at the distance of 20 feet for every 20-minute work and keep staring for 20 seconds.
So it is also called 20-20-20 Rule.
Though 20 20 rule is very easy, it is often the case that people are easy to forget the time especially when they are busy at working.
So it is advised to have an online 20 20 rule timer.
The timer can counts down from 20 minutes, and when it gets to 0, there will be a window coming out to indicate you to stare at objects at 20 feet for 20 seconds.
With the help of the timer, it will be no difficulty to practice 20 20 rule.
From the above introduction, we can see 20 20 rule is a very easy but effective method to slow down nearsightedness and astigmatism.
But there is a point we should keep in mind that 20 20 rule can slow down the progression of nearsightedness and astigmatism, but can not treat nearsightedness and astigmatism.
