9 doctors weighed in:
Is it normal that when you get really tired your eyes start to tear up and run?
9 doctors weighed in

Dr. Stephen Khachikian
Ophthalmology
5 doctors agree
In brief: Yes
When your eyes tear up and you are tired (at the end of a long day for example) this is often an indication that your eyes have become dry throughout the day.
Your eyes then over compensate by producing tears in excess which may cause your eyes to water.

In brief: Yes
When your eyes tear up and you are tired (at the end of a long day for example) this is often an indication that your eyes have become dry throughout the day.
Your eyes then over compensate by producing tears in excess which may cause your eyes to water.
Dr. Stephen Khachikian
Dr. Stephen Khachikian
Thank
Dr. Steven Vale
Ophthalmology
1 doctor agrees
In brief: Yes
Often, tearing is a sign of, paradoxically, dry eye.
When your eyes are dry, it is either because your basilar tear secretion, from the accessory tear glands in the fornices of the conjunctiva, is either insufficient, or because the tears themselves are evaporating too quickly. When this happens, the dry eyes are irritated, sending a signal via the nerves in the cornea and conjunctiva to the brain.

In brief: Yes
Often, tearing is a sign of, paradoxically, dry eye.
When your eyes are dry, it is either because your basilar tear secretion, from the accessory tear glands in the fornices of the conjunctiva, is either insufficient, or because the tears themselves are evaporating too quickly. When this happens, the dry eyes are irritated, sending a signal via the nerves in the cornea and conjunctiva to the brain.
Dr. Steven Vale
Dr. Steven Vale
Thank
Dr. Pavel Conovalciuc
Family Medicine
1 doctor agrees
In brief: Yes
Yes, it is normal.
When your eyes become tired, your eyelids do, too. Therefore, blinking diminishes and your conjunctiva gets more irritated. That, in turn, triggers feedback from the lacrimal (tear) gland to produce more tear to lubricate the irritated surfaces.

In brief: Yes
Yes, it is normal.
When your eyes become tired, your eyelids do, too. Therefore, blinking diminishes and your conjunctiva gets more irritated. That, in turn, triggers feedback from the lacrimal (tear) gland to produce more tear to lubricate the irritated surfaces.
Dr. Pavel Conovalciuc
Dr. Pavel Conovalciuc
Thank
Get help from a real doctor now
Dr. Arnon Rubin
Board Certified, Internal Medicine
20 years in practice
162K people helped
Continue
107,000 doctors available
Read more answers from doctors