Red eyes occur when the vessels in your eye become swollen or irritated. Discover when to see a doctor, treatment, and more.

Causes of bloodshot eyes are allergies, dry eye, pink eye, glaucoma, and more. Treatments include eye drops, antibiotics, or, in severe cases, surgery.

1. Alcohol Use. You may notice bloodshot eyes if you have a hangover after you drink a lot of alcohol. Alcohol causes the tiny blood vessels in the eyes to dilate, so more blood flows through them.

In this article, learn about some common causes of red eyes, including conjunctivitis, corneal ulcers, dry eye syndrome, and subconjunctival hemorrhage.

Medically reviewed by Johnstone M. Kim, MD Red eyes are caused when blood vessels in the sclera (white part of the eye) swell or burst. This may cause redness in part or all of the eye and result ...

News; Health; NHS; Red eye: Five common causes and when you should call 999 The eyes are the window to the soul, as the old proverb goes, but they can also be a window into much deeper, and ...

Some other more serious conditions that can cause bloodshot eyes include: Corneal ulcers. These are sores on the cornea -- the clear layer that covers the front of your eye.

A red spot on the eye is usually a subconjunctival hemorrhage that will heal over time without treatment. It can also be due to diabetes complications. Learn more about the causes and treatments here.

What causes bloodshot eyes? When the eyes get irritated, the tiny blood vessels on the white surface of the eye (the sclera) swell, said Usiwoma Abugo, M.D., an ophthalmologist at Katzen Eye Group ...

"Red eye can be a symptom and side effect of Covid-19. "Covid-19 can enter the body via the eyes and travel to the brain from the back of the eye," she added. 3.