The eyes are complex organs. There are many parts that must work together to produce clear vision.
Your eyes can also indicate signs of more problematic issues to do with your general health like diabetes and high blood pressure. Symptoms of these conditions are not always obvious, so regular eye tests are an essential part of maintaining your health.
It’s good for you to be familiar with what good eye health feels like, so if your eyes don’t feel quite right, you know what to look out for.