Eyes performance varies from person to person. Are you one of those who have 20/20 or an average vision? Does your vision has flaws or you have a clear vision. The Snellen chart is the most famous vision test, but there are alternative ways to find out how well your vision functions. This test is one of them. It evaluates how well your eyes can interpret, differentiate, adjust and focus on the images it’s taking in. If the results of the test are not that impressive then it would be a good idea to see an eye doctor for a professional examination.