subject: 20/20 rule to slow down the progression of nearsightedness and astigmatism [print this page] 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.
20/20 rule to slow down the progression of nearsightedness and astigmatism
