A large percentage of what we do in our life is dependent on our ability to see clearly. 4.2 billion People around the globe suffer from some level of visual impairment, a staggering 80% of these cases of vision impairment can be avoided and/or cured. Visual impairment can negatively affect your work productivity and cost you a lot of time throughout the day.

The population of the U.S. alone collectively lost 283,000 years of time in 2013 due to vision related problems. Imagine everything that could have been accomplished during this time?

With so many globally suffering from visual impairment it is quite possible that you could develop issues with your vision at some point in your life. Here are the 5 biggest signs it might be time for you to pursue vision correction:

1.     Recurring Headaches – In most cases vision degrades over long periods of time and these subtle shifts in your vision can be difficult to notice, making you strain your eyes trying to focus your vision without even realizing it. This constant struggle with your eyes to focus can cause headaches. It is common for those who suffer from visual impairment to suffer from recurring headaches.

2.     Blurring Vision – This will probably be the first thing you pick up on if you are developing issues with your vision. Generally, things will either be blurry in the distance (nearsightedness) or up close (farsightedness). It is important for you to figure out when you are having the most trouble seeing and reporting this immediately to your eye doctor.

3.     Eye Strain and Fatigue – You might find that your eyes quickly feel very tired and you need to rest them often when focusing on something. Sensitivity to bright colors and light is also common.

4.     Reduced Productivity at School or Work – Poor performance at work or school might be an indicator that you need some form of vision correction. Monitor feedback on your performance, particularly when it involves spreadsheets or reports that you put together. If you are making typos regularly there is a good chance you could be farsighted.

5.     Prominent Visual Defects – This could potentially be the most telling sign that you need to pursue vision correction. Make sure to contact an eye doctor if you see “halos” around lights, suffer from light sensitivity, or begin to notice you are seeing shadows appear on books or screens. It is also important to mention if you are having trouble seeing at night while driving as this could lead to a potentially more serious eye problem.

If you notice you are suffering from any of these 5 afflictions, it is important to contact your eye doctor for an eye exam to determine the best vision correction for you.