why do our eyes feel like they have sand or grit in them when we’re very tired ?
In: 4050
There’s the obvious which is that tear production tends to slow the longer we’re awake, but there’s another factor that was indicated in a pretty [interesting study out of Columbia University:](https://www.cuimc.columbia.edu/news/new-research-suggests-rem-about-eyes-not-dreams)
There’s also another function of REM, which is to allow the removal of dead cells and debris on the eyeballs in a gently and controlled manner. If you ever wondered what “morning eye gunk” was, in part it’s that.
This leads to a way to help reduce this feeling, at least for short bursts. You close your eyes and have your eyeballs do figure-8’s for a couple of minutes. It’s very refreshing, gives your vision a break, helps to boost circulation and remove some debris, while giving your tears time to build up.
Tears produced by our tear ducts help lubricate and hydrate our eyes. However, the longer we are awake, the tear quality declines. That makes our eyes feel drier and “crunchier” when we blink, similar to if they had grit or sand in them.
Sleeping a full night gives time for the tear ducts to reset to producing high quality tears again.
There’s the obvious which is that tear production tends to slow the longer we’re awake, but there’s another factor that was indicated in a pretty [interesting study out of Columbia University:](https://www.cuimc.columbia.edu/news/new-research-suggests-rem-about-eyes-not-dreams)
There’s also another function of REM, which is to allow the removal of dead cells and debris on the eyeballs in a gently and controlled manner. If you ever wondered what “morning eye gunk” was, in part it’s that.
This leads to a way to help reduce this feeling, at least for short bursts. You close your eyes and have your eyeballs do figure-8’s for a couple of minutes. It’s very refreshing, gives your vision a break, helps to boost circulation and remove some debris, while giving your tears time to build up.
Irritated corneal nerves. They are ‘naked’ and their concentration is so dense in the cornea.
There’s the obvious which is that tear production tends to slow the longer we’re awake, but there’s another factor that was indicated in a pretty [interesting study out of Columbia University:](https://www.cuimc.columbia.edu/news/new-research-suggests-rem-about-eyes-not-dreams)
There’s also another function of REM, which is to allow the removal of dead cells and debris on the eyeballs in a gently and controlled manner. If you ever wondered what “morning eye gunk” was, in part it’s that.
This leads to a way to help reduce this feeling, at least for short bursts. You close your eyes and have your eyeballs do figure-8’s for a couple of minutes. It’s very refreshing, gives your vision a break, helps to boost circulation and remove some debris, while giving your tears time to build up.
Tears produced by our tear ducts help lubricate and hydrate our eyes. However, the longer we are awake, the tear quality declines. That makes our eyes feel drier and “crunchier” when we blink, similar to if they had grit or sand in them.
Sleeping a full night gives time for the tear ducts to reset to producing high quality tears again.
Tears produced by our tear ducts help lubricate and hydrate our eyes. However, the longer we are awake, the tear quality declines. That makes our eyes feel drier and “crunchier” when we blink, similar to if they had grit or sand in them.
Sleeping a full night gives time for the tear ducts to reset to producing high quality tears again.
Irritated corneal nerves. They are ‘naked’ and their concentration is so dense in the cornea.
Irritated corneal nerves. They are ‘naked’ and their concentration is so dense in the cornea.
[removed]
Latest Answers