One big question we have is what causes nearsightedness and can we stop it. Well we don’t know exactly how to stop it but before we are able to determine that it would be helpful to know how to predict it. So what test could we do in grade 1 that would predict whether someone would have glasses in grade 6 photo.
It seems obvious, but a study has shown that the more nearsighted you are in Grade 1, the more likely you would be nearsighted in grade 6. Here is a link to the news report and a recording by the author.