Why Is Sleep So Important For The Eyes?

When you picture the stereotypical “tired” person, one of the main descriptors is usually bloodshot, droopy eyes with dark circles underneath. A lack of sleep impacts every facet of your body and functioning, especially your eyes. But in addition to simply being tired-looking, a lack of sleep can have serious effects on your eyes.

Why is sleep so important?

Your eyes need a minimum of 5 hours of sleep per night in order to recover from the day.

  • Exhaustion

From the moment we wake up to the moment we go to sleep, our eyes are constantly working. They’re looking around, observing information and the world around us, and being exposed to all sorts of things. This is especially true nowadays, as we are constantly looking at screens that emit blue light. Over the course of the day, our eyes can become exhausted and fatigued after working non-stop without a break. A long night of sleep is the ideal way to help eyes get their energy back.

  • External Factors

The natural tears that coat and nourish our eyes every day are undeniably important for our eye’s functioning. We’re exposed to many things throughout the day, from allergens, to pollution, to dust and other debris. Getting a long night’s sleep allows our eyes to stay protected and closed while we rest. It creates a blank slate for our clean eyes to begin the next day.

What happens if I don’t get enough sleep?

In addition to looking tired, skimping on sleep can also lead to eye spasms and twitching, which makes it extremely difficult to function properly throughout the day. Because your eyes did not have enough time to replenish its natural tears, you may experience dry eyes. Lastly, since your eyes were not completely rested, they may feel strained as you go about your day.


To put it simply: get to bed! Try to dim the lights and cut down on electronics around an hour before you plan on going to sleep, also consider using night mode on your phone and other apps. This will help your entire body start to wind down and realize that it’s time to go to sleep. With that easy transition, you can more easily drift off to sleep and give your eyes plenty of time to relax.


Leave a comment