Modern eye exams vary from being simple to very complex. The simple tests involve nothing more than reading an eye chart while the complex ones involve use of high powered lenses that help in discovering very small structures within the eyes.
Nobody wants to lose their sight. It is one of the most important things that one can have, and it is a sense that the majority of people in today’s world take for granted. Therefore glasses are worn by a number of individuals who suffer from failing sight, and local eye exams tend to be quite common and are needed for all kinds of things.
With regards to modern eye exams then you should see that they have actually changed over the years and are now capable of dealing with much more than just your eyesight. They can now spot various conditions quite early on and then help to stop them from gradually getting a lot worse as well.