What should I avoid before an eye exam?

Before an eye exam, make sure that your eyes are well-rested. Overexertion will lead to eye fatigue after the test. Besides, avoid drinking coffee or alcohol as they increase blood pressure. You will most likely get an incorrect diagnosis because of that. Lastly, do not forget your corrective glasses or lenses at home. If the power of your eyes has changed, then you will have to change the glasses and lenses too.