If you wake up with a broken blood vessel in your eye it can be a result of stress, high blood pressure, coughing, sneezing etc.
It's usually nothing to worry about although it can be scary.
A broken blood vessel in the eye is known as a subconjunctival hemorrhage which is bleeding underneath the conjunctiva.
The broken blood vessel in the eye can occur after a sudden or severe sneeze or cough, heavy lifting, straining, vomiting, or even rubbing one's eyes too roughly.
It can also occur as a side effect of eye surgery or blood thinners.
The main symptom is a bright red patch in the eye that may spread and then become green or yellow, much like a bruise.
Usually it disappears within two weeks.
In most cases, no treatment is required for this condition.
Call your doctor if the blood doesn't go away in 2 or 3 weeks, if you also have pain or vision problems, if you have more than one subconjunctival hemorrhage, or if the blood is anywhere inside the colored part of your eye (iris).
In most cases a broken or burst blood vessel in the eye takes around 10 days to heal and usually requires no medical attention.
If you're worried though you could go to the emergency room or see your doctor about the broken blood vessel in the eye just to make sure everything is okay.
A broken or burst blood vessel in the eye is known medically as a subconjunctival hemorrhage.
A subconjunctival hemorrhage or broken blood vessel in the eye can be caused by several different things such as high blood pressure, stress, violent coughing, heavy sneezing and heavy lifting as well as laughing too hard which can put stress on your blood vessels and lead to the eye blood vessel bursting.
Most times it's not serious and resolves on it's own within 10 days but if it lasts longer than 10 days it would be best to see a doctor or go to urgent care or the emergency room.
A burst blood Vessel in the eye is usually painless and is also known as A subconjunctival hemorrhage.